That's great to hear, Roland. I watched a bunch of Youtube videos about how Texans were handling the loss of water and power and wondered how discus keepers would faring.
About twenty years ago, we had a similar situation in Minnesota. Straight line winds took out the power (and most of the trees around here) for 5 days. It was cold, but it wasn't winter. Water temperature in my tanks dropped to 70F. But everyone survived as well. The commonality between our tanks appear to be bare bottom, super clean and low stocking density.