Has anyone ever had any zoas or palys kill off any SPS colonies before? I have some space monster palys and and now two different colonies near them have gotten slow tissue necrosis. The first was a pink birdsnest and now my brand new acropora nasuta colony has bleached out on a bunch of lower branches. I don't for sure know if they are related but I don't know what else it could be. I also had some kind of stag horn acro that bleached in the same spot but I had broken the colony free from the rock and rotated it 180° so I think that's what killed that one. I'm going to keep monitoring the nasuta to see if it's going to continue to bleach and hopefully it will stop or I'll have to cut it apart. I'm not really happy about this. I just got the colony a couple weeks ago and it's been coloring up nicely and has great polyp extension until I noticed the bleaching today.