Malifluous:
Light: they are nocturnal, and are closed most of the day. I'm starting to feed (in one of the tanks) in the morning, before lights are on, otherwise it closes.
In nutrients-rich tanks chili can has the microalgae with debris film on it's surface, after this coral is not opening polyps and inflating more, but: it could be scratched away with the fingernail, and coral opens again.
Flow:
I have 150 gph pump, flow is reflected at 8" from the front glass, then are chili corals. In another tank with the first chili, it was 126 gph, reflected at 10", coral was in 8" down the reflected flow.
Polyps extension is better, than in the big tank, where 600gph of laminar flow (Seio PH), is sideway in ~12"(not direct blast, but touches corals by the side of the flow cone). Without high flow, my chilis refuse to open at all.
BTW:
There are at least 2 kinds of chilis:
- vertical cactus-shaped, dark cold red, with bigger white polyps;
- hand-shaped, more "fingers" in all directions, just red with more frequent, much smaller pinkish polyps.
They can survive for months in contracted state, then, in right conditions, or after removing the surface film, they open, if nothing happened. Skinny, but alive.
I can speak only for my 3 chilis, but straight from the ocean they have hard time to adapt. I had to frag the vertical kind, and frag is doing much better than the main coral, in the same tank.
Watch for a small isopods: when chili is contracted, they are starting to eat it from the ride of LR, leaving shell; slowly - there will be time to stop that.
Red finger gorgonian (Diodogorgia nodulifera) looks like magnified chili, somehow. Easier to find food and see what is going inside the white polyps, and is opened all day, as long as you feed it. Same requirements.
Same warning, as everyone does:
non-photosynthetic corals need feeding in quantities, that will compromise water quality of the usual tank. The tank should have filtration (could be protein skimmer), turnable off, when coral is feeding. Same have long established deep sand beds and big refugiums, but I have no experience with this, at my nano-scale.
Otherwise - frequent massive water changes, and corald don't like that, especially if this is not natural seawater...
This is a PITA, but a challenge too, and I just like these corals.
The easy way will be keeping good-looking corals with no special requirements, like white xenia, bright red mushrooms and neon-green candycane, green star polyps. And they are open all day long, and it will me good-looking reef.
