What are these?

[crizzleb]

There are hundreds probalby all over the rock. The best I can describe it is they look like a pineapple kind of. Round kind of body and then pointy up top here are 2 photos. not the best camera so bear with me.

 

[sihaya]

Hard to tell from the photo... but they look like Sycon sp. sponges (sometimes call pineapple sponges). If that's what they are, they are harmless.

 

[crizzleb]

I think you nailed it.. I looked up "pineapple" sponges and it came up with the same looking pictures of what is in my tank.

Thanks alot

Chris

 

[returnofsid]

Totally harmless filter feeders that will soon cover the inside of any tubing you may have, the inside of your skimmer and other areas...lol

 

[crizzleb]

damn lol annoying little buggers

 

[billaweed]

I had a ton of them all over the place before I accidentally introduced copper in my tank. then BAM! they and all my corals left me.. lol

dont use tap water

 

[Jnance]

im actully studying these type of sponges at college, excellent for your system let em be!