Slug Like Gray/Black Hitchhiker

[Deathgrip]

Can I get help on ID this? It is on GSP

 

[Deathgrip]

It should be Dermatobranchus albus, a Nudibranch and it is eating GSP. I will do a dip immediately

 

[Deathgrip]

Aquaforest dip did not work on them. Then I manually collected 10-15 of them. I also discarded the GSP in the photo where it had more of them and their eggs

Does anyone have an experience of a specific wrasse that eats them?

 

[BubbleBuddy]

Aquaforest dip did not work on them. Then I manually collected 10-15 of them. I also discarded the GSP in the photo where it had more of them and their eggs

Does anyone have an experience of a specific wrasse that eats them?

Most Halichores Wrasse types will. Be aware that Melanurus Wrasse will move unsecured rock work and flip unsecured frags. Surprisingly Blue Sapphire Damselfish (Chrysiptera springeri) are good at nudibranch and flatworm eradication too.

 

[Deathgrip]

Aquaforest dip did not work on them. Then I manually collected 10-15 of them. I also discarded the GSP in the photo where it had more of them and their eggs

Does anyone have an experience of a specific wrasse that eats them?

Most Halichores Wrasse types eat flatworms. Be aware that Melanurus Wrasse will move unsecured rock work and flip unsecured frags. Surprisingly Blue Sapphire Damselfish (Chrysiptera springeri) are good at flatworm eradication too.

Thanks! But it seems like a nudibranch, not a flatworm?