10gal. or smaller planted tank?
Can it be possible to have a planted tank which is 10gals or less(2.5gal)?
Yes, it's possible, but it's difficult. See Amano's second book. It features
small planted aquariums, many under a gallon!
But it's a lot of work. You have to choose plants and fish very carefully.
You may also find that you need a lot more light per gallon than you would in a
Hang on, I'm interested, tell me more about that point: why do small
tanks need more watt/gallon? Because crowded plants shade each other more?