There's more then enough K1 in those blue drums in the top pic to cover all the fish I have here if they were all full grown. It's just not feasable to tie everything together in the current rental house. IF I owned a house things would be MUCH different......
I don't see many if any new rays in the future, so this is why I've started combining systems. I was on a kick trying to QT everything before adding it to the stuff I've had here for a while.....
What exactly are you looking for Marble wise? I might have or be able to help you find one......
Kinda odd that nobody's intrested in the rays that all this work revolves around??? Oh well.