I use this on my 55 gallon fish tank. It is nice to be able to see the fish after you put the salt in because it doesn't cloud up the water.

I have also noticed my fish are looking healthier and living longer!

Pros: great effectiveness, good for the fish

Cons: nothing

I just started using this for my little betta since I have heard great things about it. It is easy to use and does not cloud the water or anything.

Pros: Does not evaporate

Cons: none

I've used this aquarium salt several times over the past five years for different fish ailments. Some goldfish keepers constantly use salt in their tanks. I've used salt when getting over a disease like fin rot or fungus. The only hard thing about it is that it's hard to dose after you do water changes. I wish there was a product to test the amount of remaining salt in the water. (there may be such product and I just don't know about it) I've also used a heavy salt bath to treat for fish lice and other suspected parasites on my goldfish.

Pros: Works well for many fish diseases

Cons: Hard to dose after water changes

This is a great product and not too expensive

Pros: great

Cons: none

I use this if there is an Ich out break. I do not keep my fish in it at all times, but will use it when needed. You can also add it to reduce nitrite toxicity if you are setting up a tank, or increasing the volume of fish suddenly.

Dissolve away from the fish, as they may try to eat it as it floats down. This can cause salt burn to the fish. I usually add it to the back of my filters gradually and let the flow dissolve it.

All in all, good stuff.

Pros: Works well

Cons: Will Leave Salt Residue On the filter, etc