Hey, are you able to help…. Getting a few thru on rots and prepared foods. But less than 1% as you mentioned. Having a terrible time finding the specific cop strain in the UK so think I need to let that one go - but have found some ciliates. Couple of questions…Rotifers feed on phytoplankton like copepods do (though Parvocalanus crassirostris needs T-Iso [Isochrysis galbana] phytoplankton specifically). Phyto will not feed the fish larvae; the two foods I've seen used to successfully feed/rear these larvae are Parvocalanus crassirostris nauplii and some unidentified ciliates (some ciliates may be nutritionally appropriate while others may not be, and ciliates may be quite difficult to come by).
Parvocalanus crassirostris really is your best bet for raising these guys at this point.
Can I culture the ciliates? If so how?
Can I place the fry in a cop culture vessel so they can pick up the nauplii from the water column? - if I monitor the water quality regularly?
im thinking could the tank sustain itself and I keep adding cop feed and blenny eggs? then remove the fry once large enough?
failing this I’ll buy cop eggs as suggested but same question really - can they be in the same vessel.
Thanks