Disaster as parasite treatment kills fish at US aquarium

[HarleyK]

A treatment administered by staff at Texas State Aquarium to kill parasites has resulted in the deaths of around 100 fish.
The medication used to treat what is described as a particularly resistant parasite was initially tested on a smaller exhibit for its suitability — a standard precaution — and there were no adverse side effects.

But when the same treatment was added to the Aquarium’s Islands of Steel, Flower Gardens, and Lionfish displays, the livestock housed within them reacted very badly and began to die.

A statement on the Aquarium’s website said: “Staff members worked diligently throughout the night to save as much of the collection as possible, but considerable losses were sustained."

The dead include sharks, amberjacks and lionfish. None of the outdoor exhibits were affected.

More here

http://www.practicalfishkeeping.co.uk/mobile/content.php?sid=6722











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[Aquanero]

That sucks! I wish they would have mentioned what they used.

 

[Modest_Man]

I heard it was a product called dylox. No idea if that is true or not though.

 

[Aquanero]

If it was Dylox:

Trichlorfon the active ingredient in Dylox is highly toxic to both cold and warm water fish; its acute toxicity to freshwater fish is between 1.67 and 180 ppm (17). The 24-hour LC50 for striped bass was 10.4 ppm. The 48-hour LC50 for rainbow trout was 3.2 ppm. The 96-hour LC50 for fathead minnow was 180.0 ppm (12). Studies did not show a potential for trichlorfon to accumulate in nontarget fish (18). Thay must have been treating for fish lice or some other related copepod.

 

[Westie]

This doesn't suprise me. I've had this happen before in tanks and ponds to the point where most times I'll just let the disease run its course killing a few instead of a lot.