This is a link to an article explaining the possible effects of using the likes of meth blue, acriflavine etc with fish eggs. The subject has been raised regarding the use of meth blue on cory eggs so thought this would be useful.
http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=2126
Cheers
Gemma
http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=2126
Cheers
Gemma