Ummm, fish: I'm using a Deltec 1060S on the sump, and an additional mce600 on one of the 120's. Particulates are a problem, and the skimmers are cleaned every night. I'm working on the particulate problem.
Jens- always a pleasure to hear from you, I hope to meet you one day. I am so sorry to hear of the loss of your dendros. I'll look up those papers.
Tactstat: is that 1-2 FEET/second? I presume so-. Also, what do you think the temp was there?
Steve; I have some individuals of this species; I think it's OK to call it a Scleronephthya although I don't have a better ID for it. It's one of the hardier ones. I have not been able to document them feeding on Cyclopeez- they're too big- but they do take Golden Pearls up to 250 microns very well. Try to keep visible particles in the water around them for at least 1 hour a few times daily (TOUGH, I know).
Sammy: I will respond to your request at length soon. I am working with Tran Song, a Duke biochemist and photographer, to set up a Web site for Dendros, which will contain videos of them feeding and lots of pictures, and I'd like all of you to participate with the site. I just need a place to store all the information.
My setup is very complicated, and this is a problem. It was designed for experimentation, and now I think I am ready to simplify and document all of this so that others can do it. Some observations:
1) Water must be SPS quality pristine.
2) Laminar flow of 6 inches/second or a little more.
3) Visible clouds of food continuously for at least 1 hour twice daily, probably much more.
4) They take Golden Pearls: when starved, their polyps are small, and will need 5-50 microns. When healthy, they take 100-250 microns and possibly a little larger. Color may require adding powdered phytoplankton, not sure yet- I am using Betameal. I put a small spoonful in a cup, swirl it around, and dump it several times each night from 4PM until 12PM, and feed a few times in the AM as well.
5) Fragging is eary- cut branchlets of 5-15 polyps and put them in a gravel bowl, they will attach is a few days to a week. Even better, let them attach to nylon screws and them screw them into a black acrylic base (I will be using this technique in the new setup).
6) Try setting up a "nutrient gradient"- next to a reef tank, put up a small tank (I am using a 25 gallon high with a single Vortech pump, bare bottom) with an overflow that goes into the refugium, then into the system (or use a filter sock or sponge pad, or even a bead filter); use Chaeto to control bacteria/cyano in the refugium. Input to the Dendro tank with a pump on a timer that draws from the skimmer output. Avoid microbubbles, they stream mucus when this occurs.
7) I am just starting to work with the vibratory feeders from aquaticeco-systems.com. I am hopeful this will allow minuscule feedings of powder almost continuously. Check them out!
Best to everyone and thanks
Charles Matthews