Sea hare had an Allergic Reaction???

oscarcaldera

New member
Today in the morning 2 emerald crabs appeared dead in my tank. And few minutes ago my sea hare was eating some hair algae and had an allergic reaction, all the head like a balloon. I took him out from the tank so he can recover in a closed area, and removed the rock to clean it.
I started running NO3 PO4x and GFO four days ago, given a big algae bloom. Now there is almost no hair algae, but it looks that something remained and it was toxic. (before I was running Phosguard, with no relevant success).

The sea hare looks better now.

Has somebody an idea of what it can be? Thanks!
 

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