Help With Leather Coral
I have a 29 gallon biocube with a 32 upgraded top. It has been up for about six months and only had two clownfish in it. Last Saturday I purchased a Halloween Hermit Crab and a leather coral from Petco that looked really nice in the store. It has not opened up since it's been in the tank. What could be wrong with it and how can I tell if it's dead? There's also been a ton of brown algae growing since they've been in the tank. Is that unrelated? The leather is at the bottom center.
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