Re: [Killietalk] Water incubation of annuals

[Fred Behrmann <athensaquatics at juno_com>]

Hi Nick, Notho eggs will not " move along in embryonation" if they are
left with something ( decomposing peat) that is using the very little
oxygen in the water. Then not changing the waters surface ( stagnation)
slows the rate of new oxygen entering. You can water embryonate most eggs
by providing clean well oxygenated water. Two ways are : very shallow
water ( bring the waters surface closer to the eggs) or change the waters
surface with very slow bubbling air line. But to keep the eggs in the
watery decomposing peat(anaerobic) will put you into a pause/diapause.
This is what us impatient guys hate. I let my breeders set up for one
month periods but then immediately dry the peat and hot incubate it (
peat and eggs). The bags are put in "blown with air". Now they are
aerobic, and continue on ( come out of the pause). They resulting "huge"
hatches ( not always) is what "gets me off" being 67 and all  now. 
        So much of the "free" information I read, actually puts aquarists
into the numerous pauses/diapauses. This is what most of us try to avoid.
Hi,  Ed Brandt:
        Rainwater equivalent is used to hatch the bags because in Nature
what could be more loaded with oxygen than a cold droplet of pure water
falling thru one mile of air. Cold holds the oxygen, Pure explodes the
egg membrane with osmotic pressure . Remember the "initial" flow thru an
osmotic membrane is from less dense to more dense.                       
                                                                         
                                    Sincerely,
Fred Behrmann
Athens Aquatics
37 W. Bridge Street
Catskill, NY 12414    Phone:(518) 943-2630
Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9.
Archives are at http://fins.actwin.com/killietalk/
Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk