(First post - hope I get it right!)
I have kept several clownfish pairs for 5-7 years. I have read Joyce's book and Hoff's two books (clownfish & plankton). I raised 4 of 10 Premnas larvae captured from the first batch to juveniles, and am having what I think is the same problem with about 10 of 15 in the second batch. At about 5 days of age they swim "head up" at the surface, and with a very much faster rate of tail movement. These seem to be the faster-growing larvae. Of my first 4 the largest two, once through metamorphosis, now look normal and are settled at the bottom. The other two took nearly 2 weeks to reach full metamorphosis and are much smaller and less robust looking. The second batch is now 6 days old, and the largest ones are at the surface swimming frantically. I co-culture rotifers with the larvae and feed DT phytoplankton twice daily. My guess is a lack of food, but didn't know if I should try newly hatched artemia earlier than 7 days.
I have kept several clownfish pairs for 5-7 years. I have read Joyce's book and Hoff's two books (clownfish & plankton). I raised 4 of 10 Premnas larvae captured from the first batch to juveniles, and am having what I think is the same problem with about 10 of 15 in the second batch. At about 5 days of age they swim "head up" at the surface, and with a very much faster rate of tail movement. These seem to be the faster-growing larvae. Of my first 4 the largest two, once through metamorphosis, now look normal and are settled at the bottom. The other two took nearly 2 weeks to reach full metamorphosis and are much smaller and less robust looking. The second batch is now 6 days old, and the largest ones are at the surface swimming frantically. I co-culture rotifers with the larvae and feed DT phytoplankton twice daily. My guess is a lack of food, but didn't know if I should try newly hatched artemia earlier than 7 days.
