Ok so here's the question I been struggling with the last few days. I want tk upgrade to a 90 gall and use my 55 as a sump! Awesome idea I know lol. Now, how the hell do you switch everything over without ruining shit? Like I have corals that have spread between rocks and I'd have to pull them off to move em. An as far as the sand goes what do you do there? I wanna upgrade but I'm beginning to think it's not worth the trouble.....