Conclusion..... all done. sand bottom is in we're at day 4 after remaining CC removed, amonia 0, nitrates 10, nitrites 0 ,ph 8.2, and clear as a bell. All that is runnin is power head, korilia, and HOT magnum w/ no media inside and bio-wheel rear filter. 45# LR
, 1.5-2" sand bed. Looks like I made it through, no losses, just aged me a couple years. DO NOT USE CRUSH CORAL W UNDERGRAVEL FILTERS IN SALT WATER TANKS !, glad I got that out, I feel better. I'm ready to pour me up a black and tan and watch fish. thanks to all who shared advice.
PS: still have heated airated water at the ready for big PWC
-just in case i jinxed myself