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Re: Hydra elimination (was LFD V2 #353



Hello Bob,

You are right, that depending on pH the toxicity of ammonia will vary.
The tank I used this method on was slightly acidic and it worked fine.

To be safe, one could first add half the amount and seeing no distress
in fish, add the rest.

Best,

George



> 
> If the pH in my tank were much above 7.8, I would be terrified to add that
> much ammonia to my tank.  Best get it down to below 7.0 before trying this.
> Or would that make the treatment ineffective?
> 
> Bob Dixon

> George writes:
> 
> > It surprised me, that nobody mentioned the old stand-by ammonium nitrate
> >  (NH4NO3, available in garden supply stores) that is mentioned by W.T.
> >  Innes.
> >
> >  The dosage recommended is 5 grains/US gallon, or 85 milligrams/liter,
> >  added dissolved in a small amount of water. It is said to be safe for
> >  fish and plants. In 24 hours the hydra are gone.