I've had three spawns since I listened to Barbie's advice and used r/o water to induce spawning. My first spawn was 1 fry, my second spawn was 13 fry (one died on me, but the other 12 are growing nicely), and I got 8 fry from my third spawn. My male is sitting on the fourth spawn right now and it looks like 7-10 eggs or so, but it's tough to see.
I also use ro not to trigger the spawns but to help keep eggs in good condition I think it helps as got hard water in uk and I'm getting a better results.
Well done! Jerry
Caution is a most valuable asset in fish keeping, especially if you are the fish.