Will UV sterilizer kill free swimming nudibranch hatchlings

[Jyetman]

For the last several days I spotted each night a single bright green nudibranch crawling around my tank. Never had them before and I removed the ones I found. I dipped my zoa frags but I have others on rocks to large to remove what do I do? I continue searching the zoas at night and can't find any more but found some egg sacks on zoa stalks. Could my coral banded shrimp, emerald crab, zebra hermits, flame hawk or coral beauty be snacking on them? I'm curious could my larger UV be zapping the free swimming larva keeping the population low?

 

[fragbox]

I dont know the answer but good question would like to know the answer as well

 

[Jyetman]

I've been reading around and found information on a Berghia nudibranchs site they state shrimps and crabs are known to eat them so I wonder if that goes for zoa nudis too?

http://www.saltyunderground.com/pages.php?pID=4

Shrimp that scavenge at night: Peppermint shrimp are the worst, also Coral Banded shrimp and possibly Camel shrimp (does not include Cleaner or Fire shrimp).

Aggressive crabs that scavenge for food: Sally Lightfoot crabs, Arrow crabs, Pom Pom crabs, live rock crab hitchhikers and Emerald crabs that have no algae to eat (does not include Emerald crabs with algae available to eat or any Hermit crabs).