My convicts just had babies. I think when they are big enough they will make a great snack for my Oscar and Jag. =) Otherwise I have kind of a sheltered Pet Store that might take them for more than they are worth.
1st pike now convicts. Just put the cons in the 10. The tiger will hold its own but your other fish will need to be moved when the cons breed. Even better save your money for a bigger tank so you can use your 55 for fun and breeding.