thanks ,there in my 9x2 now but when they outgrow it or if a pair starts to develop i have agreement with freind who has 8x4 for them to go in that, i also have just bought the wood and hope to start shortly on a small 8x4 pond in my back yard ,i really would like to sorce some argus for the pond but if i dont find any iam considering keeping one of them and heating it (only problem is in the north of england it gets mighty cold so i am working out heating costs). my other channa are going to be moved to a 3ft cube in bedroom at lower temps. hopefully it will all go to plan