Green Star Polyps- can't grow

[hrdneglcry]

Basically its as if I treated the tank with copper. My new GSP won't open. I knownits normal but I have had this happen already. Only mentioning it here for any tips. It still may open but I think there is a toxin in my rocks. I have too many to throw them out. Sponges grow in the tank. Palys were trying to grow . I grow Mangrove and Chaeto in the sump . But when I put in gsp it just never opens. I got a lot in a trade. Not sure if its gonna work. I started the chaeto and the mangrove to remove toxins. It was a n epsom slat that made the tank like this a few years ago. It decimated all of my coral within a month. It was only in the aquarium for a few hours. Maybe a day as it took me awhile to do a 100% water change. It will probably get this open and then regress.

 

[castellanamattia]

Where is your powerhead located?

 

[highonh2o]

Basically its as if I treated the tank with copper. My new GSP won't open. I knownits normal but I have had this happen already. Only mentioning it here for any tips. It still may open but I think there is a toxin in my rocks. I have too many to throw them out. Sponges grow in the tank. Palys were trying to grow . I grow Mangrove and Chaeto in the sump . But when I put in gsp it just never opens. I got a lot in a trade. Not sure if its gonna work. I started the chaeto and the mangrove to remove toxins. It was a n epsom slat that made the tank like this a few years ago. It decimated all of my coral within a month. It was only in the aquarium for a few hours. Maybe a day as it took me awhile to do a 100% water change. It will probably get this open and then regress.

How long ago did you add it? GSP is nearly impossible to kill so if it’s been in there for a while then something is really off