Ok, I have the book "The Complete Illustrated Breeder's Guide to Marine Aquarium Fishes" and most of this info I am just taking/paraphrasing from there. There are three species that commonly spawn in the home aquarium and the yellow tailed is one of them. Juveniles (of many damsels) are virtually always femail and change to males later in life if needed. Two juvenile fish will ultimately become a reproductive pair. (highly generalized). Eggs are demersal and guarded by the male until hatching. The eggs are adhesive It doesn't say much about nest building, but I would assume they do some sort of thing since if you put them into a bare tank for breeding you are supposed to put in PVS pipes, clay pots or tiles for them to use as a shelter and for egg laying. So they breed similar to clowns, where they deposit their eggs on a surface and the male protects until hatching. It says that although at least one successful rearing report exists for each species of damsels, it is difficult at best. First feeding remains the bottleneck. In the successful reports, however, rotifers and artemia were used (so there is some hope!). I don't know if any of this helps, but its all I have!
And just some previous experience, I once took care of a school aquarium that we had chromis in and one or two of them would dig little pits under the rock and hang out in there.
11/07/2007, 05:28 PM
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