Can anyone ID this substance?

[jc74]

I didn't manage to snap a picture, but every now and then I'll find a clear, round, jelly-like blob in the bottom of my tank. It looks almost like a jellyfish and is about 3/4" in diameter. I found one in the tank about a month ago and another just yesterday. Has anyone else experienced this? I can't imagine what it could be or where it could be coming from.

 

[thomas712]

If you see it again try to find out if it has any other charatoristics like tenticals, vent holes, pores or somthing...and a pic would help.
Thomas

 

[nas19320]

What fish do you have? Any wrasses?

 

[thomas712]

Good possibility, good thinking.

 

[jc74]

I do have a small cleaner wrasse. I also have a box fish, a cardinal, two percs, a gramma, a firefish, a coral beauty, a diamond goby, and several shrimp and crabs. I didn't notice any tentacles on the blob, but it did look a lot like a jelly fish, although it just laid on the bottom. I'll try to get a picture if it shows up again.

 

[nas19320]

More than likely it is a mucous covering that the cleaner wrasse produces at night to protect itself.

 

[jc74]

I didn't know that wrasses did anything like that. It does make sense since it didn't appear to be alive. Thanks for the info.

 

[aarone]

yes wrasse usually make a coccoon to sleep in...some bury themsevles in the sand and some just hide in rocks....

 

[steveml]

Hi... I have the same stuff in my still-in-cycle tank. It looks like clear jelly. The replies to my post were that it's something call die-off (whatever that is) and that I should just let nature take its course. Whatever...