Thanks for the kind words Scott but my experience has been small DIY RAS and I don't have experience with coldwater partial RAS yet. Can't wait to though!

Scott,

The Elkhart conservation club that purchased certified eggs did not have to have the fingerlings tested before planting them in Cobus and other creeks. Of course they weren't selling any and thet weren't going out of state.

Airborne3118,

I'm ashamed to say I have not built or used a radial flow settler. Was planning on it but never got around to it. I use an upflow filter packed with garden fence netting that receives flow from the fish tank via a gravity powered 2 inch PVC siphon. This gently collects suspended solids in the netting without breaking them into smaller particles like a pump would. For settleable solids I have a center drain that is connected to an external standpipe and hose on the floor. I pull a knife gate valve twice a day to flush away settleable solids that collect in and around the center drain.


Got the idea for the upflow filter from Steven VanGorder's book Small Scale Aquaculture. If you don't have it you should get it. It's only $20.00 on Amazon. Would suggest a moving bed biofilter in a 55 gallon drum vs. the RBC in the book. The materials for the RBC alone will set you back $500.00.

Here's a link on building a radial flow settler:

http://www.koiphen.com/forums/showthread.php?141689-DIY-Radial-Flow-Settler


Last edited by Cecil Baird1; 01/19/16 12:41 AM.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.