Suitable tank size for 12 small fish
I have 6 swordtails and recently added 6 more of the same kind to the tank but I noticed that they are uncomfortable and have become aggressive towards each other.
Does this have anything to do with the size of the tank???
because my tank is 12 gallons but it's full of ornaments and a few small stones in the bottom and I clean it once a week.
I want to know the appropriate tank size for 12 fish and the amount of food I should give to the fish every day in order for them to be more friendly towards each other and to be able to swim freely and comfortably 894