I am running a 20 gallon 2'x2'x9'deep nano with a 10g sump. I am not sure what skimmer to run. I am thinking a remora, but am not sure what model to go for or the difference between models really. I was looking at them and the remora and the pro are just different pumps and the remora nano is smaller in size with a mj 900 I believe.. what would you go with? I am planning on keeping a small clown, a 6line wrasse, and maybe 1 or 2 other small fish.. this will be a reef tank with various corals and I just ordered a 150 HQI fixture as well.. thanks again