You'll really need to be testing your GH, KH and pH to know. Most of the time, it's the hardness (not the pH) that really affects egg hatching. Personally, I'd go for RO water, as it's easier to control than peat moss, etc. I doubt you'll need to add baking soda, but test your KH to find out.
Some driftwood (bogwood) in the tank may also soften the water somewhat, and it's essential for BN plecos. |