ok so I'm a fish newbie and got a 10 gal tank and a redtailed black shark for it. is that to small for him on his own? any filter suggestions... I just have the one that came with the tank and doubt its ability. I have a air pump with a air stone that my sister already had but think its to small for my tank what is the norm for a 10 gal tank as far as air goes? I also am worried bout the temp. my thermometer says its about 78 how warm is to warm and how do you cool if that's the case. and any feeding tips? I'm using omega one marine pellets and am not sure hes eating them. I'm mixing a little flake food as well to be safe. or any other tips or suggestions that you think might help. thanks..