nudibranch

[Dannyrb26]

is there any bad type i have 1 greyish with green swirls through it i have alot of white ones on 1 rock aswell

 

[BL1]

Most of the Nudibranches found in our tanks are pests. I would remove any you find.

 

[little_fish]

+1 bl1

 

[Dannyrb26]

maybe i have the wrong thing... its like a sponge attached to a rock???

 

[chuck78]

Pests.

 

[Dannyrb26]

i was told the white ones were harmless filter feeders

 

[little_fish]

are the white ones moving? If so its a nudibranch and needs to be removed, if they are stationary then they are pineapple sponges which are harmless filter feeders

 

[Dannyrb26]

its not either of them ...im sure it starts with a t but ive forgotten the name