Do I have enough filtration?

Sounds like you have more than enough. The bio wheel and the eheim are probably enough. What do you have the powerhead hooked up to? Undergravel?

Joe
 
It is a canister from lowes like for household water filtration. It is filled with bio balls. It was actually used as a co2 reactor. Oh and the reason I want to know if I have enough filtration, is because I am planning on getting another stingray. I moved and I go not have the tank set up for automatic water changes at the new house my filtration is going to have to be excellent.
 
I didnt think a stingray would fit well into a 75g, but correct me if I am wrong. Thought they got about 12 to 16 inches in diameter? That seems a bit cramped for an animal that large...
 
AquariaCentral.com