Well, you know, the display tanks still aren't where I want them to be, but there are some encouraging signs. I'm still doing water changes like mad, trying to flush out all the things that don't need to be in there. I haven't lost any major fish (and the big dussimieri is well over a foot long now), but I've lost some smaller ones. The sailfin that was the size of a quarter when I got him and had to stay in the basement for 9 months while I grew him out is now the second-biggest tang, easily well bigger than the purples and yellows.
The clove-y type polyp (with the spawning pictures above) is still spawning regularly and I've had a good number settle around the tank, probably 10-12 new colonies. They'll have taken over soon. A ricordia rock that I got is doing fine. So, looking up, I'd say. Not where I want it yet, but not horrible.
Mostly, I've been playing around with a lot of aquaculture stuff.
You all know that rotifers and brine shrimp basically suck as larval fish food, right? The best that can be said for them is that they are easy to grow. Small, pelagic copepods are really good nutrition, but are really hard to grow: They need good water conditions and lots and lots of live, good quality (not nanno) phytoplankton. Good quality phyto is really hard and really expensive to grow.
Sigh.
I've always gotten a weird little protist contaminant in, basically, any container with water that I through out there. It is a dinoflagellate (as are many phytos), but it is non-photosynthetic. I figured out a protocol for culturing those suckers using algae pastes that's going really dang well. I've now had them in continuous culture for about a year.
So, I was culturing along and decided that I really wanted to culture T-Iso to try to raise copepods. Try after try of T-Iso failed miserably. I finally gave up in frustration. Then I thought, "Wait a second. These other dinos are about the same size as T-Iso. I wonder if copepods would eat 'em?"
Turns out, some will.
So, I'm working with this great little cyclopoid right now. It's 100% pelagic. The adults top out at about 800 microns (less than a millimeter) and the 1st stage nauplii are about 80-90 microns wide (much smaller than a rotifer). They live in much greater concentrations than most other pelagic copepods--at least the ones being sold--and don't seem to show any cannibalistic tendencies. AND, it'll eat my little dinoflagellate. So, I'm digging these and the fact that I'm raising them with NO live phyto.
The cool thing is that I've tracked down reports that this little copepod has been used before to rear shrimp and I've also heard that they've been used with fish.
So, I'm now up to the testing with fish phase. A buddy of mine had some percs lay a nest that he didn't have room to try to raise, so he gave them to me. Lots of losses in the first couple of days (probably from transfer), but only about 6 lost to metamorphosis. So, now I have about 200 little clowns swimming around. They ate the copepods as a first food and are _still_ eating them. I didn't raise these just on the copepods, but I'm still psyched at the results.
Here are some photos:
Amphiprion percula ("onyx" [F] x "picasso" [M]):
Day 1:
Day 5:
Day 8:
Day 12:
Day 14:
Day 20, and a headstripe (stripes were really late for some reason):
Day 29, second stripe: