So I'm starting to think about keeping my 120 and replacing my 75. It had live rock and live sand and it has cyano not a fan don't want it and these polyps see pic. Now I found a worm in the rock that looked like an earth worm but squished red.along with a flat worm treatment box in the box of stuff that came with the tank so I put that in the water. Also a aiptasia box which the guy said he use to have a problem. So should I keep the live rock and sand or kill it off and start fresh? Also what kind of refugium do you recommend and return pump? I'm not going to rush this so I have time to buy equipment
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