Hydra Killer!!
I had hydra in my 49 gallon tank after purchasing a live Top Fin plant a few months ago. I tried hand-picking them out of the tank, but that's impossible. Using a syringe with hydrogen peroxide to squirt it right on the hydra works, but 99% of them are hiding, so you can't get at them!<br />At the time the tank became infested with hydra, I had a nursery tank full of dwarf blue neon rainbow fish fry - they all were eaten by the hydra. After watching one of the bigger fry get zapped by a hydra tentacle after swimming too close (he lived, but did a painful looking jerky dance for a few minutes afterwards), I decided the hydra had to die.<br />Dissolved 1 packet of fish bendazole in 100mL water - it goes into suspension, but doesn't all dissolve - and immediately added 50 mL of the suspension to the tank. I don't have charcoal filtration, but I temporarily removed the Purigen resin. Within a few hours, the hydra had shrunken into themselves a little bit, and their tentacles were no longer happily waving around looking for food. The next day they were shrunken into little stumps, and the day after that they were GONE! That was about a month ago, and I am still hydra free.<br />All of my fish were fine with the treatment. I have snails, and they didn't mind it, and my live plants were ok too.<br />Excellent product, fast shipping, and I have more packets for future infestations, so I am very pleased with this purchase.
Rating: 5 stars