i'd be curious to know who performed the research to determine lasers are good for fish. was it performed by a neutral party or by the manufacturer & how large was the sample size. i find it hard to accept the if lasers are so bad for human eyes, that they will not harm fish eyes (however, others once found it hard to accept that cigarettes caused cancer). i also believe that any product with the word "miracle" in the product name should be viewed with a bit of skepticisim. just my $.02