Killing Hydra In An Assassin Snail Tank

bgclarke

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I have a 10 gallon tank with assassin snails in it that I normally trade in at the LPS.

I've noticed recently that I now have hydra in the tank.
They are on the glass, filter intake, sponge filter, even riding on the back of the snails.

I think it may have gotten into the tank via some MTS snails I bought at an auction.

Anyway, I've read that Planaria Zero would do the trick, but that it will kill the snails.

Using pond snails was also mentioned, but with a ton of assassin snails in the tank, that'd be a short lived effort.

There are too many hydra in the tank to use the hydrogen peroxide method.

Cranking the temperature is not an option.

Anyone have any snail friendly options for removing the hydra from the tank?
 

Mazeus

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Cut way back on feeding. They can be starved out. The other option is manual removal. I would advise against dewormers like panacur or planaria zero, I learnt the hard way that chemicals stay in the tanks for many months (even with the use of carbon) and will kill snails added in after the treatment.

Why is cranking the temperature up to for a few hours out of the question? If you remove all live stock (they could stay in your water change bucket for a few hours with a heater) you could up the heat and then return them to the tank once the treatement is complete.
 
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bgclarke

bgclarke

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Starving them out might work, but will the assassins start consuming each other?

Manual removal might be the only safe option.
Lower the water level and wipe the walls with a sponge dipped in hot water.

There's at least 75 assassin snails in the tank.
The pest removers themselves became pests.
 

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