My cleaning crew (2 sailfin plecos and 3
CAE's) are in a 40 gallon breeder tank that has double filters and daily water changes for the winter. As soon as possible, they are going back out into the pond. The cae's can be aggressive but this is usually a sign of not enough food, room, or hiding places. I have found that as long as you provide them with what they need, then the cae's can be good little fish. As they age, the cae's diet is only partly algae. They like a meatier diet. They also need a lot of swimming room and at least two (and most prefer three) hiding places each. They are very active swimmers for their size and have the appetite of a much larger fish (like a shark). I would say a 10 gallon would not be able to handle the waste of any of them for the winter. I'm having to do daily water changes to keep up with the waste in a 40 gallon...