a 10gallon filter? its like the size of a ten gallon tank. the aquatech 5-15 and 10-20 are for a 10gallon, not the aquatech 40-60. The intake tube wouldn't even fit in a 10 gallon tank, not even a 20g tank without cutting half the canopy apart to fit it properly. Just because i'm not using an AquaClear or Eheim or Fluval filter like a lot of other peolpe doesn't mean what I have isn't good enough. I have the same filter on my 50g and yes I realize they're not all cichlids in there but it does a perfect job. Levels are all stable, water is clear and "earthy" smelling, I have yet to have a problem with the filter or the tank. I'm not being stubborn, but as of this moment, I have a few other things that need to be paid for before fish accessories, I would hope you could try to understand that. I'm pretty sure I did mention something about getting a different filter and i probably will later on as i like the aquaclears better. The filter I have now is what came with the tank...i'm not gonna not take the tank because of the filter. This is getting off topic. The tanks not even running yet, it doesn't even have water in it! Who knows, maybe i'll decide to get something different but for now im sticking with what i have. I did not ask to know if my filter would be good enough, i asked about the fish and their compatibility. I'm happy you gave me a good answer, thanks. But if the filter proves to not be enough like you say or isn't performing the way I want it to then i'll ask about a filter in the proper forum.