Best available alternative to PrimeAgra leca

[fishmom]

I use Hydroton (from EasyGreen). I only have a few plants in LECA at the moment, but one is a phal that has grown that way since 2012, another is an Fdk. After Dark that has been in it almost that long. They both do well, bloom, and the Fdk. has been split also. They are in homemade S/H pots with the drainage holes about 1 1/2 inches from the bottom.