Wow...didn't connect for 4 days and already there are 37 new posts...
Thanks to Peter and Mr. Wilson for answering my questions and thanks for the invitation though I'm probably not going to be anywhere near Canada in the foreseeable future...
I am verry sorry to hear about your fish but considering your QT procedures and the care you take for their acclimatation, I am confident you will have much better luck in the future.
Mr. Wilson, you are right on the use of the green lift tube in the Zinn reactor picture. It lifts phytoplancton to the rotifer side of the tank, and because both sides are linked it sends back rotifer-free water (because of the sieve action of the mesh) that has been enriched by the rotifer's waste to the phyto side.
I have never used one myself but all the reports I have read from zinn-reactors users were positive.
I have co-cultured artemia and phyto in the same tank and it was really a trouble-free process. The artemias were getting to adult size quickly and producing live youngs directly. The phyto was "feeding" on the artemias' waste and filtering the tank while the artemias were feeding on the phyto and were gut-loaded at all times. The only tinkering was removing a few extra artemias to feed the fishes if I thought the water was getting too light so that the phyto would have a chance to multiply again.
I had this setup running for about 4 months and never experienced any crash or need to empty and clean the tank. This experience made me a firm believer in the virtues of co-culturing.
This is why I was planning to have 3 zinn reactors in parrallell for my live-food station. One with copepods, one with rotifers, and one with artemias. The 3 tanks would not communicate so that when one crashes the other two are still fine. They would be drip-fed on the phyto side and I envision a syphon tube on the animal side, (like in the geaosapper) so that there would regularly be a surge and some of the animals would be sent to the tank, or the sump or refugium.
I would also probably have a completely separate phyto reactor just to make sure that I would always have a source of phyto whatever happens with the zinn reactors.
Regarding the mysis, I would introduce as many as possible to the refugium and also to the tank in the hope of creating a breeding population that would be more or less self-sustaining and that would give a hand to the tank cleaning crew while providing the fishes with interesting snacks to hunt for.
I would not go out of my way to try and breed them in a food-culturing station like the artemias or rotifers because of all the extra work it seems to involve.
I you wish to however you can always check out this article from Martin Moe about mysis culture in case you didn't see it yet :
http://www.advancedaquarist.com/issues/sept2003/breeder.htm
Keep up the good work !
Sylvain