Ok the quick and painless version of DBTC
For now I put in frogspawn and hammer coral and that is all I have in my tank, the rest are all small frags.
I have been thinking to "pay off some of my debt" with buying a couple frags at Atlantis Aquarium and putting them on the DBTC.
DBTC is not about having to have an "equal trade" that you put back into it. Not everyone has rare or exciting stuff so don't worry about that, you do NOT need to buy something just to "pay off your debt"
The DBTC "Pay It Forward" is mostly about the corals you receive, if you receive on, you grow it out when you can frag it, you do so and put back into the chain. This helps not only keep corals spread about in case something "bad" happens, but it increases the number of that coral around so there's less need to take from the oceans.
Can I offer just one frag of a certain type of coral or does it always have to be at least 2 or more of the same frag to avoid breaking the chain in case somebodies tank crashes?
You can offer as many or as few frags as you desire, every person who offers frags decides what the "rules" are going to be for that particular coral.
If you don't have anything "worthy" (and this is really a very broad and generic term), don't worry about it, for now grow out the corals you are getting, when they get of fragable size put them back into the mix for others to get, somewhere down the road if you do happen to get a little something-something and you want to put it in, then by all means, but by no means feel that you're "forced" to.
