No problems with this product, it does what it says it will- treat the water and make it safe for the fish. Reasonably priced. Makes the water clean.

Pros: perfect size, does a good job

Cons: none

I didn't rate this very high because I have learned that using bottled water is much better for my Betta, Bogart. Using room temperature bottled drinking water is easier and better for them. No chemical additives.

This product can be used but when bottled drinking water is around, why use chemicals. Do not use distilled water, however.

I guess it's what you want to pay for and whether you want to add chemicals. Using drinking water is a no brainer.

Pros: This will treat tap water

Cons: It's An Added Expense That You Don't Need

This helps keep the water cleaner looking and is easy to use because of the lid. I like it for my fish.

Pros: clean water

Cons: none

Top Fin Water Conditioner works very well. It is very fast acting, so you can put your fish in the water almost immediately after adding the conditioner. The only problem I have with it is that I got the Top Fin in the tiny little fish-shaped bottle, so I have to buy a new one more frequently than I would want to.

Pros: It works very well, and very quickly.

Cons: The bottle I got was very, very small, so I have to buy new bottles pretty frequently.

I have had my Betta for over a year and have had no problems. I know without a doubt that this product has helped keep my fish happy and safe from chemicals and toxins in the water.

Pros: Effective

Cons: Nothing