oh issit ? because my gf wanted a clown fish ... and she said she wanted to put in her house... so i bought her a one gallon tank .... the temp is ok ... 26 and sometimes 27. because i put a cooling fan.. and i advise her to top up water everyady because of evaporation .... because the fan is a real strong one.... haha.... ill try giving her a clown fish lor ... and see how she take care of it.... and i told her to have 25% water change every week... is that good enough ?