my monster of a colt has got to be fragged. Can someone tell me step-by-step, what the way to do this would be? I do not want to kill it, but it is huge and is smashing itself into the entire right side of my tank. Questions I have are....can I take more than one cutting at a time..it really needs pruning. I know I should take it out of the tank to do this, but how long should it stay in other waters before I can put it back without the toxins doing damage..