Misa: NO. They seem much more tolerant to warm water than duo's, and duo's are fine in it, they just are a little less active. Keeping up the oxygen is important, though.
Wesley, I have rubro and duo eggs going right now. PM me in a month to see if I'll have some to sell you. I'll probably forget, and I'm not on much anymore to check the boards. Actually, I'll pm you this info now.