Plenty of quality foods to condition the fish.... frozen bloodworm, daphnia, enriched brine shrimp etc and possibly chopped earthworms.
At work we had a couple of golden barbs in our plant tanks. We eventually removed the fish, but then started finding babies in there, so they can't be too hard. Temperature was never more than around 23C (whatever that is in F, lol)
I would try cooling the tank to, say, 75 while you condition the fish, then try raising it again to 80. Sometimes, cooling can trigger spawning as it mimics natural rainfall / flooding etc.
Yo momma so ugly, she makes my frogfish look cute