catfishman
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do these eggs look normal?
when should I see changes in the eggs?
how long before they should hatch?
Those are normal looking eggs with the exception of a couple of them that have turned 'bad' (the white ones). Eggs change to 'white' when they are infertile, the female will usually remove them, sometimes separate them into a different spot in the cave or spit them out of the cave. The hatch time is dependent on the water temperature but generally it will take 4 to 5 days to hatch.
Looking at the size of the spawn and the separations between the eggs, it is probably a very young and inexperienced female.
I have found, after many years of trial and error, that the parameters of pH, TDS (conductivity) and hardness (KH) are not equally important to the fish (and I am talking about soft water fish here). I think that the most important factor for the physical act of egg fertilization and development is KH. If it is too high there is a poor fert rate. That is why I use R/O to breed any soft water fish. Even when the fish do not seem to care behaviorally, I get better results in low KH water.