they want a corner because it is defensible. but the slick bottom on tank there probably doesn't seem compatible with the eggs "sticking". so they return to the indefensible rock surface. That catfish is swooping in to eat the eggs as soon as they are laid & he is so bold the geos can't keep him away. too much bottom predation in the tank, you'd be lucky to have eggs anywhere for a few minutes.
IMO, the whole beauty of spawning redheads is watching the parental care. it can take several tries for them to learn, but it's pure joy to watch, and the reason I chose them.
Yea i think your 100% right ill move them to another tank
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