I am attempting to breed kribensis i have one pair that has laid eggs once a while back ago but i never saw the eggs hatch or any eggs since then. I don't know any other triggers besides giving live food but i am kinda broke at the moment so that isn't an option right now i also take about 25% of the water out and add cold water to the tank (my friend told me to to do that)i have a coconut cave that they used last time they laid eggs. should I do any thing else like take out more water during my water changes. Any suggestions?