they are about the size of a millimeter or 2. quarter of a grain of rice maybe? or less

they look like a tubular structure with long little arms out of the top. they popped up about a week ago. and stuck to the glass, just swaying with the current.

FW tank, high light, planted, good perameters but ph is a little high at 7.4.

They are a pain to get rid of. They have stinging tentacles that will catch small fish. brain dead and can't think of the name! Argggg I hate memory problems.

okay it's hydra here's a link

http://usafishbox.forumotion.com/t2503-killing-hydra

where did they come from? the plants were in there a month or more before they popped up. and nothing else was added except frozen bloodworms when feeding.
maybe with the gourami or shrimp? but even then it was quite a while ago.

They can come from the blood worms. Have you added any new snails? they also hitch hike on snail shells.

eek! I gotta get them out of there before my baby puffers get too close

no new snails, just the ones that have been breeding in there.

Okay here's the link I was looking for

http://usafishbox.forumotion.com/t5391p12-planaria-and-hydra?highlight=hydra

ok, so i better get on finding someplace that has something to treat it tomorrow.

how did you treat yours? flubendazole too?

i will need to find out if my puffs and angels can handle that stuff before i try any of the methods i found. but if it's safe for shrimp, i would imagine it would be safe for small fish, but who knows. inverts are a diff specie.

When I had them they came and died in a week with no treatment. (but I only had a couple in an 84 degree tank)

would hydra die with a 2 or 3 day blackout maybe? but then I would be concerned with the angels and puffers you have in there too. Some of the stuff I read said they may die out in a blackout. ?

or maybe could hydrogen peroxide locally applied would kill them? i just had that idea. people do that for algae spot treatments.