Is Fish Food A Viable Fertilizer? | Aquarium Experiment |
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- Опубліковано 21 вер 2024
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Experiment 1 didn't go as planned and I will re-do it ASAP. A few interesting things we observed:
Tank 2 - fish and fish food (no liquid fertz) Grew almost as well as Tank 1 (+liquid fetz, no fish no fish food) Reds plants seemed to be darker in Tank 2.
Tank 1 did visually beat tank two in overall biomass, especially the green Rotala rotundifolia and baby tears. Growth is Tank 2 seemed to be more compact.
NO3- and PO4 were never detected in the water column of Tank 2
Tank 2 - Had more green spot algae most likely due to higher limitation of PO4.
What are your thoughts? What experiment would you like to see?
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Check out more videos:
Aquarium Experiments ► geni.us/nVIfuj
Experiment 1 didn't go as planned and I will re-do it ASAP. A few interesting things we observed:
Tank 2 - fish and fish food (no liquid fertz) Grew almost as well as Tank 1 (+liquid fetz, no fish no fish food) Reds plants seemed to be darker in Tank 2.
Tank 1 did visually beat tank two in overall biomass, especially the green Rotala rotundifolia and baby tears. Growth is Tank 2 seemed to be more compact.
NO3- and PO4 were never detected in the water column of Tank 2
Tank 2 - Had more green spot algae most likely due to higher limitation of PO4.
What are your thoughts? What experiment would you like to see?
Lighting plays a factor as well. I have a natural guppy tank with female bettas......no fert....plants grow like crazy.
Maybe i am seeing reflections but it looks like there are tetras in the left tank too lol
Was this done with demineralized water?
This is greatness! Wish you would have provided details on the dosing method for tank 1 as well as amounts of PO4 used to clear up the Green Spot Algea. Please, please, please, more of these videos. Please!
@@Nutakins against spot algae dose 1 ppm per actual water volume. Up to 3 ppm shouldn't cause problems as long as nitrates and potassium is not low.
This is the Mike I know! I understand that producing more “exciting” videos draws more attention, but I really think you should put out more experiments, reviews, and explanations. I know videos with titles like “NEW FISH” and “DISASTER” will get more views, but you should really flex that aquarium science muscle; you are really fine tuned in this hobby.
The aquarium science is the reason I originally followed Mike, way back in the day.
I concur
Couldn't agree more, I miss the old days of the lab coat
Please moar scienz!
I agree
My favorite video in a long time. I fully support this type of content!
Thanks Cory!
This is exactly what I do. I feed heavily and do big water changes. So left over food and or fish poop makes my plants thrive without co2 or fertilizer. 🙂👐
I don't care about new fish/new tanks
I am interested in experiments like this that will help me better understand this hobby.
THANK YOU
Check out Barr report. They have been testing for years.
@@alis49281 will do, thanks for the recommendation
tbh regardless of the methodology, really appreciate the initial explanation of the limitation of your experiment
and what your experiment shows. The effort is really appreciated bro!
Thank you, I know this type of content wont be for everyone, but still think it can benefit a lot of people. Goal is to make it as entertaining as possible, hope im up for it!
I love this style of video where you get into the weeds about the chemistry. A lot of times when caring for my tank I feel like I'm just following instructions without really understanding what I'm doing. As I'm sure you know, it's tough to find reliable information about specifics on the web. I've think I've learned the most from your videos simply because I trust that you know what you're doing and you always explain the why's behind what you do. Looking forward to more in the future! Btw, I'd love to understand more about ammonia at low ph levels, different treatments for sick fish, and brown algae. Thanks again!
Thanks Cyri, I might have plans to bring back the white board for some shorter, to the point explanation videos. This is my full time job, so I have to balance the "entertainment" side of content with everything else. Its really nice to get your feedback and thanks again for the continued support :)
I am left with the question, "Do we really need to be using ferts". There are a growing number of hobbyists on line that have tanks with no ferts, CO2 and low-cost lighting and have great aquariums.
That highly depends on the source water. If it contains nothing, it will grow nothing in the long term.
I swear, Mike is secretly like 50 years old talkin bout “once upon a time I was a scientist” if you are 50 Mike, you look great😁
Once apon a time Aka like 3 years ago lollll👍🤠
I'm color blind af. I always have to get my wife to check the colors for me
JoelRichardson “color blind af” lmfao
I really liked this format and level of explanation. Great job Mike.
🤠🤠🤠🙏🙏🌿👌
I know I'm late to the party but this seems to go with observations that Tom Barr has made regarding algae. He contends that no excess of any one nutrient is to blame for any particular algae but rather that algae grows when the plants aren't growing to their full capacity. With nitrate consumption decreasing when phosphate was depleted, obviously it looks like plant growth in general slowed and algae filled in the gaps. If phosphorus was the limiting factor that slowed down the growth in the fish food tank, that would account for both the slight underperformance in growth and also the consistent presence of algae. Super interesting, I'm subscribing for this type of content for sure
This is quickly becoming my favourite segment! i'm always curious about the effect of having surface agitation/flow on plant growth in a NON CO2 tank. Some had argued surface movement gas out CO2, some has argued that gas exchange is important for non C02 tank. I can see arguments for both sides.
Thank you! Thanks a lot for the effort! These are just the kind of videos all aquarium keepers are waiting for... 🙏🏻
I always appreciate testing. I wish there was more of it on UA-cam.
True, the Barr Report infornation is rarely found on UA-cam.
I love this kind of stuff, I would love to have a setup to do this on my own so glad someone can do this and share! Looking forward to the next "experimental" setups
I've missed the lab coat and science stuff, Mike. Great to see a old school type video again. Very cool.
👍💕👍
I love these style videos!
Me too!
Amazing Video Mike. This is what I thought about doing but never got around, because of the hard work and commitment. 😄 Thank you Mr Scientist!
Hey, cool video👍 I do partial water changes weekly no ferts or anything just decent lighting and a combo of dif fish foods, no co2.. Seems to work pretty well still!
In this case, qualitative results are better than quantitative. It’s just plain silly to operationalize aesthetic results as anything quantitative. What would we use? Pixel RGB values for photos of the tanks? Plant mass as you suggest? The thing is, dry plant mass doesn’t necessarily mean the plant has grown in a way that we find aesthetically desirable.
This video was posted during my science class 😅
Yassssss
This is the kind of content and direction the hobby needs more of. Thank you.
You should do one also using an inert substrate to eliminate the interference with the results due to the soil
Very good video, I understand much better now as I dont dose ferts everyday but feed my fish daily
Loved this. I think you should do this type of experiment several times with different variables. I would like to see you do it again with better balance of nutrients in the fertilizer side and more livestock and food in the non-fertilizer side so you have more N and P. Another one would be same or similar with inert gravel substrate. I know we get N and P from fish food but I think other nutrients are lacking. I think if you are able to get N and P the same in both tanks you will see a difference in growth because of the lack of other nutrients from the fish food.
Great job Mike
I love experiment videos like this! I really hope u do alot more of these!
Great video, hugs from Brazilian aquarists!
You should have used inert substrate in both tanks
Great information overall! I really enjoy this kind of content. I am a new hobbyist aquascapist and I am trying to absorb as much info as I can to grow healthy plants and avoid common problems. Has the new experiment been done yet? I know my comment is coming late 2 and half years later, but I couldn't find the new experiment browsing through the videos.
I hope you can redo a version of this with stem and rhizome plants to avoid the substrate adding nutrients to the water. If you want rooted plants, then use pots with rockwool that you know doesn't have any fertilizer hidden in it.
Please do more videos like this, very informative and learned a lot of things I didnt know.
Next experiment should be......
High tech tank....
With a aquaponics/horticulture light.
More experiment tanks!!! I missed this style of your videos so much
I love your channel you have inspired me to start my own channel and now I have so many fish and fish tanks
Loved the attempt, but I would narrow down the variables such as:
Tank a-no ferts
Tank b-ferts
Tank c-fish food
Tank d-no fish food
Tank e- ferts/fish food
Really awesome experiment.
There is nothing like failure in research work.
Keep doing
You are one of the most scientific aquarist I know.
Assumeing you use a food thats full of all the vitamins and minerals, youd think the tank would have everything it needs. Over time anyway. The plants absorb the nutrients as biomass. You could just cut everything down to the same length. And weigh the diffrence between the two tanks
I think the big missing parameter here is the important role of micro-nutrients that might have been in the liquid fertilizer (not sure what was used) but are not present in fish food. Metals like Potassium, Zinc, Calcium, Molybdenum, ect are not going to be present in the fish food/waste but presumably should be in a commercial liquid fertilizer.
Where the hell did you hear that? Most carbon-based life forms from plants to animals have similar nutritional requirements, and all of the minerals, metals, chemicals, etc. that plants need are going to be present in fish food due to the variety of whole foods used to make them. Think of fish food as a broad spectrum fertilizer, which in fact, is actually more likely to have everything the plants require than inorganic fertilizers. The general approach to fish+plant tanks is to use fish food as the main fertilizer and use inorganic fertilizers as individual elements, such as potassium or phosphorous for example, to target specific nutrient deficiencies if plants are using a lot of one particular nutrient.
What is the water temperature in the plant tanks for the experiment? My temperature is 70.7- 74 do you think this temperature is alright for plants?
Wow, awesome video I wouldn’t have predicted this result, not even close. My biologist nerd side really appreciated this. Thanks for another great video!!!
Keep the science videos coming. Outstanding information.
Interesting. I look forward to experiment 2.0 results. I'm glad to see the white lab coat again.
I really enjoyed this video, thanks for running these experiments.
You could have mineralization occurring within the tank with fish and fish food that allows the organic forms of the nutrients to go back to an inorganic form usable by the plants. This is what we do in aquaponic systems except we remove all the fish waste and break it down and add it back into the system after it is broken down. I mention this because I see the solids building up in the substrate and if those areas are still receiving oxygen the bacteria can break those nutrients down and release them back into the substrate.
Great vid, this style is how/why i first started following you, keep it up!
This is super interesting!!! Thanks so much for doing it!!!
Nice question and great video! We need more of us to do this to find out more about the hobby.
Yess!!! Bring back the lab coat!! I thought I was watching an old video for a sec lol.
Love the experiment videos!! Keep 'em coming!
Excellent experimentation! Definitely a question that most hobbyists have.
Gram staining. That brinsg back memories. I miss working in a lab.
Doubt you keep up with your comments... BUT could you do a video on tissue culture vs the real thing? THAT would be an interesting science experiment. Might do it myself with the next tank i get
Very interesting results for sure!
Dustin’s Fishtanks has been preaching for years, a majority of a plants nutrients are absorbed through the roots! I think this experiment fleshes this out.
That is the purpose of roots. This experiment sails nothing because he used Soil. Just pure sand would've shown a major difference.
If you would have added more fish food in tank 2 and nitrates and phosphates would have been detectable would the algae grow and does algae stop plant growth because algae grows instead of the plant growth?
Keep up the good work!!!! Super interesting UA-cam videos!! One of a kind!!!
Good to see you back in the lab coat! Great Vid!
I always wondered this too. Thanks a lot for the video!
I think you should try this with 4 tanks:
1) No fish and no ferts - this is your control
2) Fish & food only
3) Fertilizer only
4) Fish food (w fish) and ferts
Also I would try to get multiple plants of the same species for at least one or two of the stem plants so you had more plants to compare.
It's worth noting as you said that fertilizers aren't made equal so you could try something to compare fertilizers as well. This is why they say to test your soil and see what fertilizer you need to add in gardening - even soils are all different. I think this applies to aquariums as well. I'm also curious if you compared growth rate in different soil types as a separate experiment.... I wonder if potting them would affect it too.
You dropped some knowledge on me! GSP is a result of low phosphate, thanks for that👍
Finally going back to your roots!! I’d love to see what you get when you gram stain cells off a sick fish
Thanks for doing the footwork bro
This video is so useful! I'm always wondering about the decay adding nutrients for my plants and how having both fertilizer and detritus affect growth. Especially since I'm irregular with my manual fertilization.
Nice informative vid! I had to smile when u explained quantitative vs qualitative. I’m in health care and a very common lab is the pregnancy test and sometimes I have to explain the difference. Lol. Quantitative measures what levels of the pregnancy hormone are present. The qualitative just lets us know if the hormone is actually present. 😂 sorry. I just had to nerd out.
Fish food as fertiliser works fine for my planted tanks
Wow a science video... haven't done one of those in a while 😅
Nice video. It’s a great A topic to be discussed. Looking forward for new test
Thanks for this. Im always low on Phosphate too even though i dose 1ppm per day. Also got some green spot Algae. Going to dose higher after watching this.
So I can fix my algae ridden aquariums by adding fish stock to them. Awesome, I've been wanting to restock and haven't done so, since the last time all my stock died because of the insane temperature swings I had in the home.
In one of the experimental videos can you talk to us about lighting and PAR, Or maybe lux I can't get a par meter to measure the lights good with white light.
I don't see the difference in the color chart a lot of the time. I use Colorblind Pal on my phone to get a more quantitative result, instead of relying on my eyes. I use it with the same background under the same lighting every time to reduce inconsistency errors. Maybe you could try to use it too?
An experiment of this type should be duplicated at medium light and low light. The difference in growth with different demand plants would be interesting.
Excellent, very interesting indeed.
Fish food ---> fish waste = manure i.e. plant food.
Good substrate with micro and macro nutrients lasts months if not years. Use kiln dried sand or horticultural grit next time - and have a control tank and don't vary the amount of commercial liquid fertiliser added, keep it consistent.
Well planted tanks with, soil based substrate, CO2 and adequate filtration, rarely if ever, need big water changes (touch of the Walstad method but with CO2).
E.I. and lots of water changes are just too much work for me - I'm a bit lazy (and old).
Fish foods vary, some contain a lot more Phosphate than others.
In heavily stocked, heavily fed tanks, floating plants can be amazing at taking out Nitrate and Phosphate. Duckweed, Hornwort, Indian Fern and Salvinia all work - Duckweed, however, if the water is rich in macro nutrients, will take over in no time at all, so I don't advise its use.
I suspect, your experiment repeated with my suggested 'tweaks', you might find you need to add Iron/Magnesium and perhaps boron to the fish food only tank - after months, not weeks that is. A bit of a guess of course.
In plant only, or very lightly stocked tanks, as well as Chelated Iron I have used separately with apparent success (not scientifically trialled) a terrestrial plant food for Streptocarpus plants - it is NPK but with bigger hit of Potassium (7-10-25) and some Iron and Magnesium.
Thanks for keeping me entertained and informed.
Keep up the good work.
Hello please let me know i want to make a low tech plant with easy plants
It is my 1st time to do plant
Can you tell me can i only use gravel with fertilizing tablets under it .
Or i must use soil ? Can i keep soil in mesh bags ? I always has feeling that when I do water change soil will mix with gravel and foil the water .
Please advise me.
Thanks
Very well done, pleade keep doing experiments
Mike, can you clear something up for me? You state that once you added enough phosphate that the green spot algae went away. Did this go away on its own or did you scrub the tank and it didn't return?
nice to see the lab coat again
I never add fertilizers after the initial set up/planting of the tank way before fish are added. My plants get their food from my fish and fish food. I do not feed a lot. I also use a grow light for plants made for aquariums. The problem i seem to be having the last month or so is nitrate levels being up some and light red algea
Plants can't absorb nitrate as long as potassium and phosphate are low. Then the algae do this instead. Commonly fish food has no potassium.
@@alis49281 thanks. What is the best way to put those 2 back in the tank. Fertilizer only? Or is there another way. Asking because i am getting ready to set up another so i want to nip it in the bud and correct the other one.
@@wendyhenschel. Fertilizer only. You could use wood ash, but thatis just another form of fertilizer. The cheapest fertilizer are mineral salts you can buy.
Monopotassium Phosphate might be exactly what you need to complement.
Then get a mikro-nutrient fertilizer, dose it at least once a month or during water changes as low as possible.
@@alis49281 is there one you can recommend?
@@wendyhenschel. I did... 'Monopotassium phosphate'
For a mikro fertilizer I use Aqua Rebell Micro Basic, but any fertilizer that only has the mikro-nutrients and very little potassium will be suitable.
I suggest to avoid any fertilizers that don't say the amount of their potassium ingredient.
hi mike have a question for you. if you lose power in your house how long will the bacteria stay alive in my canister filter. thank you joe h navy seabee
Really cool video!! Very interesting, and Im interested in seeing more!! I always cycle my tanks by adding around the amount of food that I will be feeding the first round of fish until ammonia hits zero, and then a big water change, and then add fish. Maybe you could do another tank with no fish but adding .2g of fish food and letting it break down for the ferts? hope ya can understand what im saying. Good luck!!
The tank with fish. Look up Aquaponics:)
the time AM/PM of water tests would be a variable as well..
Really liked this kinda thing !!!!.. I don’t think it has to be all technical like the gram stain or weighing to see the real results.. I feel people are looking at the results is how most people will relating to the experiments that ya do.. just my opinion anyways.. you have the right ideal for great videos and this is my fav so far ! Awesome job ! 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍😁
Yyyyeeeesssssss the lab coat 🥼👍👍👍✌️😉
To my understanding you can get false negative tests for Phosphate when algae is present in the tank.
Hello Mike,
where do you buy the fish tank light holder?
i love LOVE LOVED this video. videos like this interest me and i love learning and understanding everything im passionate about so we can do it the best way we can! Hopefully you do more videos like this I appreciate the time and effort you put into this video SO SO MUCH! MORE!!!! FISH SCIENTIST MIKE lol
Bad ass! Love videos like this
This stuff is interesting!
Great video 👍
I'm seeing fish in the tank you just said had no fish like half way through..
I caught that too. He said one tank with fish & food/fert, one tank with no fish but with food/fert. But I'm seeing fish chillin in both tanks.
In the beginning of the video I mentioned that I was already on experiment#2 at the time of filming
No Co2 tanks , 1 with fertz and substrate.. and Tank 2 your old gravel or new one, only with fish and food
How old is this tank?
Ehhh between 6 months to a million years old...Why?
Oh just asking...
Awesome
I was curious could you use a high potassium food for a deficiency?
Of course. A lot of frozen food is high in potassium in their liquid.
Fertilizer us easier to dose, but since a very wide range from 1 - 5 ppm is fine, it can be done.
Brought back the lab coat!
What if you didn't have fish but just use fish food to "fertilize" the plants?
the food is only useful to plants when its digested and pooped out of the fish... so practically the fish poop are the fertz
Cool. I was just wondering this the other day. How much nitrogen does a fish produce?
How long is a piece of string?
@@jake3551 it's a rhetorical question. I'm setting up an aquaponics system and this gives me a general idea of how much fertilizer even a lightly stocked tank can produce. I don't want to add ferts because it's a waste of money and I don't want to do water changes because it's like pouring a healthy plant down the drain.
Use the advanced calculator on Flowgrow. It is not rocket science.
Im on my way to my Advanced Human Nutrition class (basically Biochem) . i watch this instead of review....