Slug?

[warvillian]

I have had my 75 Gal reef tank set up for about a month now. When I decided to use a light to look in the tank after the lights went out this is what I found. Are they slugs? Are they good or bad? Thanks in advance.

 

[warvillian]

This unknown object seems to emit some kind of chemical from it's mouth or antenna when I flash a light on it, during complete darkness.

 

[JoshuA c]

I think it is stomatella
It had mixed opinions so google it and decide for yourself. It has good and bad

 

[mr_X]

he's right, sort of. stomatella snail and there are no bad stomatella snails, unless you really, really, really love your unwanted algae

 

[JoshuA c]

Or if u have fish that feed on the algae. Use goggle to make your decision; that's my advice

 

[warvillian]

Well that has to be a hitchhiker because I never added any snails. They hide all day and only come out at night. Also, what is the chemical that it is releasing?

 

[mr_X]

probably spawning. they are hitch hikers, and are very common in our systems.
btw, the algae that stomatella snails eat is microalgae, not macroalgae. i don't think the fish are going to be eating it anyway.

 

[hackteck]

i have a couple of those in my overflow

 

[JoshuA c]

probably spawning. they are hitch hikers, and are very common in our systems.
btw, the algae that stomatella snails eat is microalgae, not macroalgae. i don't think the fish are going to be eating it anyway.

What about the lawnmower blenny?