Looks like a tiny anenome? Is it a plant or parasite or?

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

https://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

https://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.

i took them all off the the wall and the few that were on the rocks in the same spot with a net. i see that i have one left that i missed but i haven't seen any new ones grow, so maybe just doing a 70% water change (mainly cause i wanted the water low to landscape), cleaning the rocks and adding more plants will help prevent new ones.

i am going to grab some corydoras as lifeisgood suggested so they will eat the leftover food and that may help too.

What other fish are good substrate cleaners? I really don't like the look of corys, but if they are good workers that is what really matters.

the angels are pretty good about grabbing any blood worms that are on the bottom later, but the gourami and puffers won't eat anything that isn't sinking.

NONE of the fish will eat the frozen tubiflex worms or the mysis shrimp or the brine shrimp. So i guess i will have to stick with bloodworms for now and maybe they will be more adventurous as they mature.

The tetras however, will eat anything dropped into their tank!

Hydra are animal not plant. so algae treatments will not work.

i know, but the creatures they live on feed on the left over foods.

They like the live frozen foods and the other little critters living in your substrate If they come back you'll know.

Vixen your right on. Thank you puffer for the fine picture. Its been a long long time since I have seen them.

They wont die from a blackout. I had them in my tank and the dog dewormer I used worked great. See https://usafishbox.forumotion.com/t5391p12-planaria and-hydra?highlight=hydra which is linked above also. Just be very careful not to overdose.