I spent some of my 40$ giftcard for petco last night. I bought a tetra PF10 filter, a ghost shrimp, and and a bamboo shrimp! I love the shrimp! My two ghost shrimp do a good cleaning job and the bamboo shrimp is really cool looking! One problem, the part of the filter that sucks up water seems to be sucking up so much water that it can't all come out of the waterfall part, and falls back over the tube that sucks it up.