Thanks, Glenn. Never did complete my doctorate. Did a dissertation on ecdysis. I was a Blue Crab fisherman out of North Carolina and was published on methods to shed Blue Crabs. I had six 4' x 8' tanks. The "sump" was a full size septic tank with a truck load of ancient coral rock out of Virginia. And, the "protein skimmer", which wasn't called that then, was an eight inch, twenty foot long, pipe. That was in the 90's. I was one of the major producers of soft crabs at that time.
Even though my passion is building things, I am a serious science geek.