Curious what these are??

Zacharoo

Member
I had an ick outbreak which killed all my fish. My tank has been empty for around a month and these started popping up on back glass. Any idea what these are?
 

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Uncle99

Crab Free Zone
Premium Member
A Nudibranch?
If so, some good, some bad, most bad, can be very destructive to specific corals.
Berghia eat Aptasia.
 

reefing102

Who Am I Here?
Premium Member
Definitely looks like some type of nudibranch. Had any issues with corals getting ate or dying?
 

Zacharoo

Member
I bought the tank with a hammer coral. Didn’t last long after the tank was moved from house to house. Can’t say for sure what killed it.
 

Uncle99

Crab Free Zone
Premium Member
The prob may be not the adults, but the eggs or juveniles.
Unless your 100% sure it’s safe, remove.
Maybe a wrasse, or long nose hawkfish, might snack on the smaller fry and eggs.
 
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