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"First Night Death" syndrome
I read about this on MOFIB. This seems to be what I am experiencing. Of about 600 that hatch, 150 seem to free swim after hatching and growout fine; the rest hit the bottom immediately after hatching. They are most definately alive on the bottom. If I shine a light on them, them seem to twitch off the botom, but settle back. In the morning after hatch, they are dead. The remaining ones growout fine.
Parents have spawned 15-20 times and are very well fed. Rods food, NLS pellets, enriched Spirulina brine, Formula One/two, etc 4-6 times a day. Parent tank is 80.5-81.5 so they hatch day 8. I pull them a couple hours before hatching, run 8 gallons of parent water thru a UV sterilizer slow (25W @ around 100 GPH flow rate) and put them in a sterile 10g w/ airstone and heater. Rotifers are added,water is tinted green, and CloramX is added.
What causes this? What can I try?
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220 in-wall reef, 10 clown pairs, 4 fry tanks, 18 grow-out tanks
Current Tank Info: 220 in-wall reef, clownfish breeding/growout system, 20L coral QT and 29 fish QT
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