What is this Alien????
- Thread starter meowzer
- Start date
mr.clownfish
Active Member
Originally Posted by spanko
http:///forum/post/2937585
pics are blurry, but it resembles a nudibranch.
+1 some kind of nudi.
http:///forum/post/2937585
pics are blurry, but it resembles a nudibranch.
+1 some kind of nudi.
mr.clownfish
Active Member
i think they are. im not sure. some nudis eat coral. its like a 50/50 chance.
groupergenius
Active Member
Looks like a greek goddess nudibranch. Usually harmless. Keep an eye on it though. Usually, except berghias, nudis with frilly back are bad. Smooth back normally safe.
My rule, if there's a doubt, throw it out.
My rule, if there's a doubt, throw it out.
fishhunter
Member
Most definetly a nudibranch! I dont know if its harmless or not.
scsinet
Active Member
Some nudibranches are predatory. I lost a massive Colt coral to an outbreak of predatory nudis in my tank. I didn't realize what was happening until it was too late.
Predatory nudibranches tend to look like the coral they are preying on. In my case, they looked like colt corals.
There are also nudibranches that eat harmful things. Someone here mentioned Berghias. These nudibranches are actually considered beneficial because they eat aiptasia. There are some that eat flatworms, and flatworms love to hang out on leather corals, so if yours is climbing on the toadstool, you may want to look for something it is eating off the coral, rather than eating the coral itself.
One thing to remember is that nearly all nudibranches are very specific eaters. If you've got one doing well in your tank, it's because you have a food source for it. Whatever that food source is, once it's depleted, the nudibranch will die.
Predatory nudibranches tend to look like the coral they are preying on. In my case, they looked like colt corals.
There are also nudibranches that eat harmful things. Someone here mentioned Berghias. These nudibranches are actually considered beneficial because they eat aiptasia. There are some that eat flatworms, and flatworms love to hang out on leather corals, so if yours is climbing on the toadstool, you may want to look for something it is eating off the coral, rather than eating the coral itself.
One thing to remember is that nearly all nudibranches are very specific eaters. If you've got one doing well in your tank, it's because you have a food source for it. Whatever that food source is, once it's depleted, the nudibranch will die.
jayking232003
Member
according to a book I have, this is a Hypselodoris festiva, Family: Chromodorididae. They feed off ascidians and other similar benthic inverts
jayking232003
Member
its called "The Complete Book of the Marine Aquarium by Vincent B. Hargreaves