How to remove hard water stains from aquarium by vinegar and razor / remove calcium build-up

for this project all you have to need vinegar, new razer blade, lime and a filter mat or sponge.
first of all mix vinegar and lime in a container and add a little bit of water and spread all around the tanks where the stains built up by the filter mat or sponge. you will see the strains became lighter.
then use the razor blade and scrap of the remaining white marks. new razer blade will not make any scratches to your aquarium glass. if the blade is old aur dull then it may causes some sketches.
this is an old aquarium which I bought in very cheap price decided to restore it and use it for my new discus tank. the link has given below.
• My new discus tank... ...
I have another video on this tank to upgrade that into a fully integrated sump filter. which will be a fully compact aquarium with the benefit of of having a sump. the link has given below
• INTERNAL SUMP// INTEGR...
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[@aquilakhtar3905]

Good job

[@happyfishkeeping1490]

Thanks

[@prosenjitmarick4116]

Use only muratic acid. Then wash it and leave it for sometime thats it.

[@happyfishkeeping1490]

Muratic acid will do the job on glass but it effect gose to the silicon..it loses its durability