mwp
In Memoriam
Well, this evening I have set up the hatchers again, both with the same water, same air flow. The only thing I've swapped is the egg sources...#1 went into hatcher #2 and vice versa...if the eggs from each batch hatch the same way as last time, we know it's the eggs. However, if for some crazy reason the same HATCHERS have the same hatch rates, then something else is up 
FWIW, Dan @ Seahorsesource pretty much agrees with the general concensus that somehow the one bottle of eggs has become contaminated/spoiled.
FWIW,
Matt

FWIW, Dan @ Seahorsesource pretty much agrees with the general concensus that somehow the one bottle of eggs has become contaminated/spoiled.
FWIW,
Matt