Exploded Zoa polyp

[chadfish]

What concentration? And why would it kill aiptasia and not Zoas? Thanks- still learning

 

[SchrutesReefs]

There’s going to be a next time?

And if you don’t catch it early, the next time could be much more invasive

 

[PicassoClown04]

What concentration? And why would it kill aiptasia and not Zoas? Thanks- still learning

Corals have a slime coat that protects them (if you touch the zoa, it is slimy) and aptasia/algae does not (especially after being cut with a razor). So H2O2 dip is very common to kill algae on the zoa plug which irritates the zoas. So the dip destroys the zoa’s slime because it kills everything it touches but it also kills the algae or pests. The zoas will be pretty upset while they regenerate the slime coat but should open up within a week. I like 50/50 H2O2 to tank water for 2 minutes.