And also picture tells a thousand words
Size of fish
Amount u feed
What filter n what (or how much )media is inside
Just in case .
do not wash media during water change
when i first started out, i was a total noob and washed the filter media once
why so many filter such as hang on back, hand on top, canister, sump, internal etc
i also didn't know what's cycle the tank and have never heard of beneficial bacteria, mechanical, biological and chemical filter. Activated Carbon, UV Light
Also never heard of aquarium salt, chlorine, chloramine, PH, ammonia, nitrite, nitrate, General hardness, carbonate hardness, temperature requirement.
And what is also 6500k light, or warm day light or cool day light or white pink LED or White Blue LED
What is tannis, black water? liver bearers, nocturnal fish? vitamins solution? 1cm per litre rule? aeration?
Why aquatic plants so many types? Why subtrate so many types?
don't even need to talk about CO2, NPK, micro elements and trace elements
Why algae got black beard, green, green blue etc?
But at the very least, I still bought a cheapo OF $1 anti chlorine for my first Betta Fish