Accu-clear - good product or evil fish killer?

Hi, I'm new and found a link to this thread by doing some searches on accu-clear. I had the same problem that wolfpup did--my fish seemed fine (a south american cichlid--he was growing and i had him for about 4 months). Anyway, I tried accu-clear **once**--one night--and he immediately seemed lethargic and affected. The next morning he was dead. I've had my current acquarium for almost a year now (and previously owned a larger one with cichlids in it for about 5 years).

I will admit that I don't do any testing--and I'd like advice on what I should do for a simple, 30 gallon tank with about 2-3 cichlids. Less expensive is better because I have a tight budget.
the price of a test most of the time is cheaper then new fish. if you have no idea whats going on with the water you really have no idea what happened. yes there is a chance accu-clear did it but there are a hundred other factors that might be more likely.

i use prime to treat my water and to the best of my knowledge never had any problems with it.
 
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