Do fish taste sweetness

[RogerMcAllen]

I work at a well known ingredients manufacturer where I am in constant contact with a product that tastes several hundreds of times sweeter than sucrose. When I get home from work I can still taste the sweetness on my hands after several washings/showers. I am not worried about putting too much sugar in the water, but rather that I might overload the taste receptors of my fish. Right now I am mainly housing cories, which I assume won't be affected. I did a forum search for taste, and found that they are pretty much exclusively carnivores, which would not seem to make tasting sweet a high priority from an evolutionary sense.

[Silurus]

Taste receptors that are very similar to mammalian taste receptors for sweet substances have been reported in fishes.