Randy, Research seems limited on this topic, but from what I can find the studies have been done only in heated instances (cooking), and any transfers noted have been minuscule. It is a build in progress. Hope to add more as the spring progresses. Have a lettuce raft and a vertical tower I want to hook to it.
I'm concerned about the use of aluminum in closed systems with fish. For my 2 cents, I would for go the cone and just siphon the solids from the bottom of the swirl filter when necessary. You have a nice neat system there, makes me realize how hodgepodge mine is.
You need to be a member of Aquaponic Gardening to add comments!
Join Aquaponic Gardening