Infertil eggs

Eric1 · Post by **Eric1** » 11 Feb 2006, 04:32

Hi Folks,
I have had 2 spawns. I have 3 females and 3 males in a 10 gal tank. The fist spawn no eggs hatched. I lowered the temperature of the tank to 76 The second spawn had about 50 hatch out of 300 eggs.

Both times the eggs were removed with a razor blade and treated with 1 stp of methelyene blue in 10 gal.

Could hard water cause the eggs to be infertile? my water is about 7.8 PH 12 GH and 12 KH.
Thanks
Eric

kim m · Post by **kim m** » 11 Feb 2006, 05:11

In my opinion, your water could well be the reason. When i have some breeding corys, the eggs will fungus when I've used tap water for water changes. My tap water is very much like yours.
If I use rainwater, the eggs almost never fungus. I don't have measurements of my rainwater, other than pH being around 7, but the water is much softer than my tap water.