Well I don't want to do that because I've had him for almost 3 years and I wouldn't want to lose him which is why I want to add the angels first then after 2 weeks I'll get the water tested. Then if its good I'll add the pleco.
OK thanks guys. One more question. Once I clone the tank should I add fish immediatly after doing so or should I wait like half an hour before I add some angels to it?