M
Maggie Cummings
Guest
I just bought a great filter from PetSmart for $26 and it's keeping a 250 gallon tank clean. I have a UVB light for the fish, there's no turtles in there, but I think your's are too cold and need warmer water and a 'good' UVB light. That gives the same light rays the sun would. UVB helps to absorb calcium. It's an important light.