Preventing Mold Growth During Malting

[ElCubanazo]

Don't see a malting section in the forums so I assume this is the appropriate section!

I'm making a rice and blue corn whiskey. And instead of malting the corn I'm malting the rice.
I know the DP of rice is super low (think it maxes out around 50°L in best case scenario) but I'm doing it for flavor and then adding enzymes to the mash to convert at ~150°F.

Anyway, my method of germination is using those metal trays stacked with holes in the inner one like most folks do at home for corn.

In the more moist bottom parts I'm getting some cobweb mold. I've added a tiny bit of bleach to the rinse/spray water (per dnderhead's suggestion in another thread), I've been spraying less, and I've been turning more and letting it dry out more.

It's helped the mold from forming too much but still smells like the cobweb mold. Furthermore the dryness kinda kills some of the germination or at least is slowing it down a lot.

Any suggestions on what else could help? I think dnderhead said k meta could help but IDK if that's better than bleach in the water.