Thanks Pearl. This has been a fun project so far. The Platties are doing fine after two days. With the filter media from an established tank in one of the filters, I'm reading zero ammonia and everyone looks stress free. I'm going to let it run for a while, as is, to make sure everything is stable. I probably won't add the multies for several weeks. I had originally planned on returning the platties to the other tank to make room for a large colony of multies. I'm beginning to like the Platties on this tank. I think I'm going to try leaving them with hopes they will be safe in the rocky area if I leave about six inches of open ground between the rocks and the shells. Making this a hard water community of some sort. At this time the plan is to start the multie colony with about 6 juveniles. If you have been following this thread you know my plans tend to change as I go. Only time will tell.