Alright I upgrading my tank from 55-75 gallons. I currently have acro, monti caps, and digi's. I also have zoo's, mushroom rock, branching hammer, and frogspawn. Would I be best dumping everything that isn't SPS? I am thinking I should stick with acros, monti, and digi's only. I don't want to have chemical soup in my tank in the future...Hasn't been a problem in my 55 yet, but everything grows and I want to prevent future problems. Or is it all in vain unless I have acros from all the same family...anyone have any links on species specific tanks?