How do you charge for frags?

[GoFish]

I'd way rather trade than sell stuff, but having an infatuation for zoanthids and owning a tonne of different colours it's getting harder to find things to trade for that I don't have.

1. I usually ask what I would pay for the frag. Sometimes taking into account for what it originally cost, sometimes just wing it. Once in a while someone says how much for a frag of a particular zoa. If I don't have any frags, then I'll make one then decide.

2. How much the local store will give me for them in credit.

Always open to offers especially if someone is new to the hobby or wants a few pieces. Not a fan of people who say "what's your best price?". I consider that question rude in general, especially when someone does that via text message or PM.