Sadworld,

I know of two situations where pond dyes indirectly killed fish. The dyes themselves did not directly kill the fish. The dyes blocked the sunlight during a decent plankton bloom and caused the plankton to die. This in-turn caused the oxygen squeeze that killed that fish.

It's always best to use dyes early before excessive plant growth begins and then maintain the dye throughout the year. SOme ponds are more forgiving than others. Ultimately, the depth of the pond and the amount of vegetation present will dicatate how early (or late) to use the dyes.

In one of the cases, Aquashade was used and the other was an off-brand. The brand didn't matter as they both did their job and blcoked the sunlight. Unfortunately, they caused a plant crash that whacked their fish.

I'm not saying that your product couldn't have contained something detrimental, but my experience with this type of situation suggests otherwise.


-----------------
"Imagination is more important than knowledge" Albert Einstein