Thanks. I know that pet store associates aren't always reliable, but I talked to the guy where I got them from and worked out a few things to try. First I got some cricket calcium dust to add to my cut loaded guys, and some better lighting and I've turned the submersible heater back on. I'm waiting to see if they become more active with more light and warmer water. I'm also going to play around with their habitat tonight to make it a bit nicer. Hopefully what I'm doing will work. If not, I have another pet store to try tomorrow for food. I'm feeding the same food they've always been fed by the petstore so far and it hasn't been a problem in the past. I'm wondering if changing a darn light made that big of an issue.