sorry this is a little off topic, but how are you getting your gsp to stay put? I've fragged a few pcs, but they dont seem to want to attach to the rocks i placed them on. Not sure if they keep getting knocked off by snails/hermits or what. Definitely not current, just keep finding them on the substrate.
To try to answer your question, I personally wouldnt take less than $20 a pop with the exception of the single shroom ($5-10). As was stated earlier, they are fairly common corals so the demand may not be that high. Best way to look at it would be: How much did you pay for YOUR corals and try to at least get most or all of your $ back for the frags. After all, you took the time to raise them, you should be able to get your original colonies for free...technically:thinking: Good luck, I'm trying to raise some colonies myself for a straight trade for some pulsing xenia.