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webdizzy
09/30/2019, 04:14 PM
I recently purchased a blue velvet nudibranch to deal with a flatworm problem. He was fine for a couple of days -- I could see him eating flatworms off the glass (if he could get them before the FW released into the water column), but I haven't seen him in a couple of days. Do they have any predators that could be in a home reef? Like an emerald crab, or fire shrimp? Just wondering if something ate it, but I think those are the only 2 things that I have that I would suspect.

Thanks!

Sugar Magnolia
09/30/2019, 08:07 PM
They typically die quickly from starvation.

webdizzy
09/30/2019, 08:17 PM
There’s no way it could have died of starvation that quickly when there are lots of flatworms.

Tyrenlds
10/02/2019, 02:43 PM
Attempted to use them twice for flatworm control and both got minced in the power head over night. They got swept away in flow very easily. Might look around for minced pieces around your tank.

webdizzy
10/02/2019, 05:55 PM
Yikes and Ew! I haven’t seen anything so far, but I did notice there’s not much to it to anchor it down — seems like it could easily float away and I did find it floating close to a rock one time so I nudged it onto the sand.

Big E
10/03/2019, 04:02 AM
Attempted to use them twice for flatworm control and both got minced in the power head over night. They got swept away in flow very easily. Might look around for minced pieces around your tank.

Yep, they can get easily get blown around. I bought a few years ago.....they do eat a lot of flatworms but the problem is you have to have very mild flow or they end up swept in the overflow.minced up, or stuck to a power head.

You would think they would stay put on the rock where all the flatworms are but for some reason they decide to go for rides in the currents.

You may want to try to get a choris wrasse. I'm not sure which species eats them the best.......maybe the yellow choris?