You are right Mr C,I really need to get my finger out and re home the Malawis then do some switching around,just maturing some filters for new tanks the discus madness has got me again,got a pair I want to try and breed, I have got them to wrigglers but they eat them as they are in a mixed tank.I need another HMA,the PH meter is playing up,3 more tanks,more mixing vats, more money, some sleep,aaaaaaaaarrrgghh