They tend not to last as long as other fish but sometimes you can get a good one. I don't hesitate to buy them on occasion and think it is worth it even if they only live a month. Their sacrifice of working hard and then to die an untimely death saves many other fish's lives in the process. The longest I had one last is 6 months but it really did a great job with the other fish and also ate all food I put in the tank including pellets and flake. Long story short I think they are a good investment.
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Greg
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