Myka is right. I gave you a really lazy answer. Sorry.
The idea behind finding the right sized live foods for larval fish is by using not one screen, but using a series of progressively finer screens.
For example, if you poured everything through the finest screen, it would just capture everything and clog up.
So, for example, in a study by Olivotto et al. 2010
Olivotto, I., Piccinetti, C.C., Avella, M.A., Rubio, C.M., and O. Carnevali. 2010. Feeding strategies for striped blenny Meiacanthus grammistes larvae. Aquaculture Research. 41: e307-e315.
they cultured Tisbe sp copedpods and isolated specific sizes (stages) of copedpods by separation of nauplii, Copepodites, and adult Copepods by draining through screens at sizes 300 µm, 100 µm, 50 µm, and 30 µm.
So you could, for example, use the 1 micron sock to catch everything smaller than 30 microns as the last pass in the series.
Realistically, though, micron screen glued to a holder is much easier to handle than a sock.
Last edited by Reef_Geek; 01-03-2013 at 02:47 AM.
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