Today is my first day on this site its just what i needed.I have a 125g my water stays clear and all my fish are healthy,I have 2 rena XP3 FILTERS and 2 air stones.I have 1 tatoo talapia 11in,3RD1-8IN 2-6IN 1FLOWERHORNE 7IN 1clownknife14in 1managuinse5in 1GT4IN 1FMOUTH3IN 1CON3IN 2PLECO1-11IN 1-8IN 1GHOSTKNIFE 7IN and1small cat TOTAL 14FISH not much fighting.Planing on moving soon,What size do I need.THANK YOU WE APPRECIATE IT.