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[jahouli]

Hi,
I've just found a big black slug looking thing climbing on a snail or snail shell. I thought all my turbo snails were brown. It has lots of tentacles sticking out all over it's body, but can't see a face. Is this just a snail out of it's shell or a nasty snail eating slug/nudibranch??? I have had a few dead snails over the weeks....is this the cause???

 

[Musho3210]

water params?

 

[jahouli]

water params?

A, N & N all zero. 26.5degree C, 1.025 salinity. Ph 8.2, Calcium 400, Kh 7,

 

[Musho3210]

how big would you say the slug is, i have a sea slug in my tank which are harmless, are the "tentacles" flexible or rigid?

 

[jahouli]

They're flexible I think. Half back to thinking it's just a snail again but it moves three times the speed of my other snails.