Hay there and Welcome Harold. Sylvia, the network creator is out of contact for a bit but I'm sure she will welcome you herself when she gets back. In the mean time here is what she usually tells new members.
"Thanks for joining the Aquaponic Gardening community! I hope you find it a fun place to explore aquaponics. There is a real blend of experienced and new aquapons in this community, so please don’t hesitate to get in there and start asking questions. Everyone is quite happy to help out new members – no question is too basic.
A great place to start is by checking out the forums, blogs and groups. If you are interested in a forum or blog topic, but don’t want to join in right away, just check the “follow” box to be notified whenever there is activity on that subject.