light for planted aquarium guide part 0, basic physics of light

[@TheAirpirate28]

such an underrated channel this is!! perfect instructional video thank you sir ..

[@farizmammadov4965]

you are super teacher

[@fisharefriends598]

I’d love to see your take on fertiliser and plant problems

[@meladqies445]

good job man

[@minhanhnguyen9603]

this is excellent, thanks so much

[@anphan05]

thank you for the content!

[@johnnybest6386]

Who are you❤❤❤❤❤❤