I have 4 turtle tanks, 12 RES ranging from one month old to 17 years old...
and cannot get an external filter due to lack of space living in a NYC apartment. And there are two turtle tanks on top of each other so gravity won't work.
Which internal brand would you recommend? I'll be getting different size for different size tanks....currently I'm using Fluval 3Plus and change water every other week but it takes 3 hours each time...
And is Zoo Med 501 Turtle Canister Filter even a good filter? I can get the ones hanging too.
Thanks!