Need a macroalgae eater for an 18g

[LBCBJ]

My tank is running over with enteromorpha or derbesia (not sure) macroalgae that I can't seem to get rid of so I'm looking into adding a macroalgae grazer (at least for temporarily). Anyone have some suggestions?

 

[EdKruzel]

Try an Elysia crispata, the lettuce sea slug; it's a shelless snail that eats debrisa and incorperates it into its tissue.
It requires bright light to survive and will breed in the tank if paired.

Ed

 

[LBCBJ]

I've never had luck with them. Are there any fish?

 

[Ryanqk]

Not much in the way of fish, plenty in inverts. Dont put a tang in thats for sure u need at least 50gl for them. I'd get either a baby urchin, or a sea slug or herbavor crabs. 18gl is just too small for most herb fish you will find in a LFS. Unless someone else here can come up with one...
Ryan

 

[LBCBJ]

I know the size constraints, but it would only need to be temporary.