Wierd Catapillar thing! ID please

[Jermz79]

I have 2 of these in my tank right now! Are they good or bad! They kind of remind me of a fuzzy catapillar!

 

[Fluff]

They look like some type of cucumber.

 

[Jermz79]

I just looked at the pictures and they are not very good. although you can make out the little spines and what not! They are very very very slow moving ... and this one is a greyish color with black stripes! The other one is light tan with brown stripes!

Cucmbers eh .. hmmm good or a bad thing?

 

[Fluff]

I don't know a ton about cucumbers but I think most are ok. I'd just keep an eye on them. But not be to worried.

 

[Jermz79]

Thanks Fluff!!!

 

[steve-s]

The pics are pretty blury but if I had to guess I'd say <<Holothuria atra>>

Cheers
Steve

 

[Jermz79]

Close, a little more fuzzy looking than those! Mine also have these little spikes stickinf off of them! Very Wierd indeed!

They seem to curl up to about an inch during the day when the lights are on and then at night they stretch out to maybe 2.5" - 3"!!! I'll see if I can get a better pic tonight! Wish I had a tripod!