too many hydroids?

[tygerfifteen]

i have tons off them on my glass good or bad?
they are in a new bout a month old nanowith some polyps and mushrooms.
thankx

 

[ophiura]

Hmm. You sure they are hydroids? Are they "dots with legs" and do they move at all? Any chance for a pic?
Generally, too many hydroids can be bad, 'cause they can sting.
But the types that are found on glass are a little different, IMO. So just trying to clarify what ya got.

 

[tygerfifteen]

oph they are the ones on the glass they look like snowflakes, do they eat copes????
thankx again

 

[thomas712]

Do they look like this?

 

[dazed1]

Originally posted by Thomas712
Do they look like this?
I have or had a few of those in my tank. What are they ?
They look like really really small jelly fish

 

[thomas712]

Bingo - Dazed1 - give that man a cigar
They are hydroid jelly fish.
From the Odd Critters Page. rshimek
"The animals are between one and two millimeters in diameter. These are organisms which are turning out to be relatively common. They are crawling hydroid jellyfishes, which do not swim, but rather move around the tank sort of like a small, soft, slow spider. They move by fastening on to the substrate with their adhesive patches. The tentacles are tipped with concentrations of nematocysts. There is a red eyespot at the base of each tentacle. These organisms become quite abundant in some reef systems, and then rapidly disappear without a trace."
Thomas

 

[dazed1]

Originally posted by Thomas712
Bingo - Dazed1 - give that man a cigar
They are hydroid jelly fish.
From the Odd Critters Page. rshimek
"The animals are between one and two millimeters in diameter. These are organisms which are turning out to be relatively common. They are crawling hydroid jellyfishes, which do not swim, but rather move around the tank sort of like a small, soft, slow spider. They move by fastening on to the substrate with their adhesive patches. The tentacles are tipped with concentrations of nematocysts. There is a red eyespot at the base of each tentacle. These organisms become quite abundant in some reef systems, and then rapidly disappear without a trace."
Thomas
Thank's !! but for some reason, mine were simming the other day !! Erratic (sp?) swimming !!! First they won't know they can swim, next they'll just start going like they're in the olympic's or something

 

[thomas712]

In that case you may have the Cladonema jellyfish, they can swim and be on the glass or substrate.
Thomas

 

[ophiura]

Good answers! Should come and go...yet another one of the creatures that bloom and disappear pretty quickly.