what is this?

TROPHEUS · February 6th, 2010, 06:21 PM

on one of my anubias nana i found this little fellow. does anyone know what this is?

Lnd · February 6th, 2010, 06:34 PM

Hydroid.

jnotjane · February 6th, 2010, 06:35 PM

I think that's a hydra.

TROPHEUS · February 6th, 2010, 06:54 PM

are they bad to have? do i need to get rid of them?

Louree · February 6th, 2010, 06:59 PM

Generally they wont bother anything other than fry.

TROPHEUS · February 6th, 2010, 08:52 PM

i just read that hydras eat small microbs in the water. didn't really say anything about fry. what can happen? its in my tank that have tropheus ilangi, should i be concerned?

Louree · February 6th, 2010, 08:58 PM

They will sting and eat the fry. But I think it depends on how big the fry are.

LuisVillalobos · February 9th, 2010, 10:47 PM

wow that looks horrible, its crazy how that little thing can eat a fry.
Hope non of your fish are at danger.

TROPHEUS · February 10th, 2010, 07:21 AM

next question is how do you get rid of them?

Louree · February 10th, 2010, 01:37 PM

Well I used flubendazole, which is not only expensive but it killed my fry and 2 more batches afterwards until I realized I didnt use carbon to get rid of traces of it. But it killed the hydra in 24 hours! I have some spixi snails which I read eat hydra but I havent had a chance to find out since I havent had a recurrence.

TROPHEUS · February 10th, 2010, 02:37 PM

spixi snails huh. may have to give them a try.

Aaron · February 11th, 2010, 04:06 PM

Gourami eat them but they may eat your fry too.