I really think the so call "super reds" are over rated, all the ones I've seen in the stores are pale looking, personally I wouldn't spend the extra bucks for those.
I had 3 wild reds in the shoal, two small ones were from Peru and the bigger one from Ecuador.
the tank is a standard 180g (6'x2'x2'), I got the caribes around 2" and in about 6-7 months they grew to 6-7", will probably hit 8"-9" or so by the end of first year but I had to let them go before that. I've been cut back on feeding once they reached 5-6", only 2-3 feeding a week, sometimes 1-2 feedings, other wise they might be a bit bigger.
if you never kept piranhas before getting a solo serra species can get boring quick, a lot of the times they'll hide or just floating at one spot and not doing much. with a shoal you get more action going on and the feeding is always fun to watch.
here's an old feeding video of my old shoal.
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