Toxin Secretion?

[VoidParadigm]

Simple question:
Is it possible for dead Wasps to release enough toxins into the water to kill 0.5 centimeter fry?
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Went in to feed them today, noticed a dead one, so for the first time in almost a week I actually opened the top to look in instead of just flipping the easy feed hole. Several drowned wasps floating on top. All the fry dying or dead.

Only a half dozen fry were in there, ammonia hasn't spiked, filter's more than capable of handling any increases.

Last culprit is the wasps, imo. So, is it possible?
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As for category, yeah, it's not really a disease, but it's the best thread section I could find to stick this in.

[Spardas]

What kind of fry? What's the volume of the water?

It's quite possible that the toxins from the wasp can kill the fries if leaked into the water and nothing is wrong.

[VoidParadigm]

Guppy fry in a ten gallon.

[Spardas]

With all else good and since they're guppy fry; I believe it might be the breakdown of poison into the water then. Clean the tank out and screen the tank and see if your new batch will live.