What corals have you tried and what do you want to keep? 10 years of being in the hobby means nothing if you keep doing the wrong thing. Instead of experimenting what might live, why don't you start with understanding your tank parameters and find out what's needed. These basic parameters are crucial for success in reefing.
Ammonia
Nitrite
PH
Temperature
Salinity
ALK
CA
MG
Phosaphate
Nitrate
Another thing you definitely have to check is copper. If you have been medicated your fish in the same tank before, the copper will be absorbed in the silicon and it will slowly leach out and kill the corals.
*I'm very disappointed in the posts I've read in this thread. Instead of offering to help the OP's tank parameters for long term, you offered something else for him to kill.