I picked out two CPO's at random from a LFS about a month and a half back. I had them in my main tank and all was well for a few weeks of watching my Corys closely for damage. That all changed about 3 weeks in. The larger of the two crays started showing more aggression. Some of my Corys had fin damage which I had to assume was from the crays. The larger cray and the smaller cray started to spar with one on top of the other. I decided to set up my 10 gallon to seperate the crays from the fish before taking them back to the LFS. I was able to find the larger cray and place him in the 10 gallon. I was unable to find the smaller cray for a few days however. Finally the smaller cray appeared, and was berried! The sparring was mating, the smaller cray a female and the larger a male. I caught her and placed her in the 10 to see what happened. They had a brief skirmish then stayed away from eachother. That was about 2 weeks ago. Today my daughter noticed the babies moving freely in the tank. Coolness.
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