I have Cnidaria Hydra are they a sign of a healthy ecosystem?? what are these??
I just noticed them what the heck a they doing in my little aquarium?? I searched them and everything they are pretty neat but does anyone know how these came to be? are they okay to be in the aquarium?
they look like some kind of coral or something I dont know...heres some pictures
they're super cool, but they do sting. (like a jellyfish).
If you have tiny fish, they may be eaten by the hydra or stung to death. Large fish (over 2-3 inches) should be fine, however they may experiance stress if they are stung repeatedly. Larger fish than that would probably shrug it off, and possibly eat it..
Will my smaller Danios be okay for now or is this an emergency??
sounds to me like an emergency.... you have small fish and they sting! Can you scoop them out with a net? Careful you don't get stung yourself, you don't know how your body might react. you hand could swell up.
Sounds like you better do more research fast as to how to get rid of these... what was the last thing you put in your tank? A plant? Fish, looks like you got a hitchhiker! good luck.
I was looking at an article and it said that the snails eat them but I just took some out that where growing on the snail's egg themselves! I have no idea when they came in the last plant I brought in was a Moneywort but it didnt last...
thank you for your tips Jackiebabie:)
They should be fine as long as it's not an infestation.
Hydra's stinging cells are meant to paralyze their prey so they can eat them.
Luckily for you, their native food is daphnia and cyclops. (about the size of this period- . )
The fish should have the sense to avoid them.
I just did research, and your fish should be fine.
If you notice any symptoms, you can kill them with 2ml of 3% hydrogen peroxide per gallon, or pretty much any anti-ich (or anti-parasite?) medication.
If you happen to have a syringe, you can apply peroxide or salt locally to kill them. manual removal might not work too well.
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