Thanks for the reply.
I'm not worried about getting rid of them, just trying to grow the population a tad in my larger tank.
I did a weeks worth of daily, manual removal in the shrimp tank and then decreased the feeding a bit and that's all under control. Honestly, I think the use of Mineral Junkie caused my spike (probably feeding too much of that) because before that, their numbers were low and they didn't do well in the low Ph of the tank. I'm going to guess the addition of excess calcium and other minerals that they could scavenge helped them thrive, whereas before that they were barely getting a foothold.
As for the 125, something must be feeding on them because there is plenty for them to eat and thrive on in that tank.