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Old 10-23-2005, 06:04 PM   #11
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Did you touch them? If there hard I would says ita a urchin if there soft then I would go with the nudibranch.

9/02-125 REEF, 125 lbs LR,LS 4x160 VHO, Reef Devil /Sump, Fuge
7/03-55 FOWLR 60lb LR, 50 lb SD sand 2x40 NO strip light, Reef Devil/sump, Fuge

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Old 10-24-2005, 02:21 PM   #12
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Do urchins change the color of their spines?

If you believe it to be a nudibranch, then a fresh water dip with some lugols iodine will get the nudis off. You need to look for eggs though. They are little swirly white string like things that are normally on the zoo but can be laid on just about anything.

The process as I know it has you get some RO/DI water and match the PH and temp of your tank water. Add 5 drops of Lugols iodine per gal of water used. Let the zoo sit in the water 5 minutes and then remove. I will then inspect the zoo for eggs.

This dip is recommended for all new zoos before you add them to your tank. I had not done this but do now.

Look in the zoo forum on reefcentral. There are pics of the nudibranches and the eggs sacks. They go into more detail on the dip as well.


*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,
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bug, zoos

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