Index Of / Jpg Oral How Much Filtration Is Needed For A 20-30gl Fresh-water Fish Tank? And Do I NEED A Water Heater?

How much filtration is needed for a 20-30gl fresh-water fish tank? and do i NEED a water heater? - index of / jpg oral

I took the plastic tube and insert the air hose in a shell, this work will die eventualy fish? Do you really need heating and at the top?

http://img178.imageshack.us/img178/7748/hpim0025cr3.jpg
http://www.aquaguide.net/images/pages/3/index.81.jpg