Hydra- How To Send Them Away !

Hey all, I’ve got a hydra outbreak in my planted 22g. I keep nano fish and want to get rid of these hydra befor they start killing my fish. I’ve gotten all the fish transferred into another tank so I’m keen to irradiate the hydra completely but I’ve read numerous conflicting info about how to nuke them and don’t have any panacure etc so I’ve got these questions:

Will seachem Paraguard or blue planet multI cure work?

Would dosing be more affective at high temp eg 30c+

And will overdosing affect the plants?

Don’t too much care about the cycled bacteria because I can easily reseed with other tank media etc. and I really don’t mind if treatment wipes out the pond snails BUT I will need to add 2 mystery snails back into this tank once treatment is complete so have to avoid copper based meds etc

 

I got rid of my Hydra outbreak simply by wiping them off of the glass and plants whenever I would see them. Keep up on doing that every day multiple times if you can and your problem should be solved hopefully in 2 weeks depending on how bad it is

 

Gourami love to eat them.

 

Yeah, typically if you’re not seeing any obvious issues you can just let them be. Also, ponds snails will usually eat the hydras so the can keep them under control. No need to make a chicken out of a feather.

 

Sorry to sound like a total noob but what is a Hydra?

 

Sorry to sound like a total noob but what is a Hydra?

They're practically a freshwater jellyfish, only about a half an inch long and they live stationary on aquatic plants and home aquarium glass lol.
I made the mistake of picking live native aquatic plants from one of the lakes here where I live and ended up introducing some Hydra in the process, this was yrs ago.

Here is a close up of hydra

 

Here is a close up of hydraView attachment 411817

How big is it? Quarter? Dime? Pea? Rice?

I've never heard of them. How to they get there?

 

How big is it? Quarter? Dime? Pea? Rice?

I've never heard of them. How to they get there?

The biggest they get is half an inch that I've personally seen, they thrive in freshwater mostly warm Waters with a current as they collect food particles and sometimes baby fish "fry" if small enough. If I remember correctly from the article I read they attack fry by grabbing them and stinging them until incapacitated.
But most fish are too big to be injured by these hydra.
To be honest IMO these little guys are pretty neat and they add a little touch of a raw natural feel to the aquarium.

 

I’m assuming the hydras sting is at the very least annoying the fish because my fish avoid the worst areas. I wouldn’t mind so much if they weren’t mainly covering the glass at the front so the glass permanently looks dirty. I’m really not looking for help with what they are or if I should just leave them because Ive already made up my mind and really just need to know how to kill them

Gourami aren’t an option because I don’t have any currently and don’t have a spearate tank to keep them in. I have a few female bettas, they are the same family so would they work instead of gouramis?

Has anyone used heat or meds with any success?

 

I’m assuming the hydras sting is at the very least annoying the fish because my fish avoid the worst areas. I wouldn’t mind so much if they weren’t mainly covering the glass at the front so the glass permanently looks dirty. I’m really not looking for help with what they are or if I should just leave them because Ive already made up my mind and really just need to know how to kill them

Gourami aren’t an option because I don’t have any currently and don’t have a spearate tank to keep them in. I have a few female bettas, they are the same family so would they work instead of gouramis?

Has anyone used heat or meds with any success?

Like I said earlier wipe them off the glass and everything else every day until gone

 

1+

Get yourself a magnet cleaner if you don’t have one already to make quick work of them. A couple swipes a day keeps the hydra away.

 

Problem with wiping them away is that they are apparently similar to immortal jellyfish in that they can be damaged but not really killed and wiping might just spread them. My other problem is that I’ve got a newborn and a toddler so no time for daily maintenance either

 

Best bet is to dose the tank with a parasite remover or if you don't have snails get something that kills invertebrates idk what they have on the market for parasites anymore

 

Did a massive dose of paraguard and turned the temp up and they were done within 24hours! Woohoo, problem solved