Posted on August 23, 2011 by

Pacu Caught in Grand River, Michigan

A Pacu was recently caught in the Grand River in Michigan by Isa DeVos. This is likely another example of an aquarium owner releasing his non-native fish in to the local waters and not a sign that we’re being invaded by another invasive species.

Pacu, a vegetarian relative of the piranha, can grow very large over their life span (up to 60lbs!) and easily out grow even a large aquarium. Many fish owners don’t consider how large their pets can grow, or even how long the can live for. I’m sure this owner thought they were doing the human thing by releasing them, but in fact it’s the opposite as they’re now endangering native species.

You may also recall an earlier post about Adam Eibling’s “impossible catch” of a 5lb Pacu in Ohio.

Posted on March 22, 2011 by

KokeMachine’s Bearded Trout

KokeMachine wrote in to let us know about a video he took of a strange looking rainbow trout, and wondered if anyone knew what caused the white fuzz all over it’s body.

Well, having nearly 150 gallons worth of aquarium space in my house I can tell you that this looks like a fish with very serious case of Ichthyophthirius Multifiliis, more commonly called ‘Ich’.

Visible Ich lesions are usually seen as one or several characteristic white spots on the body or fins of the fish. The white spots are single cells called trophozoites or trophonts, which feed on the tissues of the host and may grow to 1 mm in diameter. A smear should show ciliates if white spot is present.

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