40 breeder with 20 long sump Ph stable 8.0 NO3 >1 Alk 8.9 Mag 1185 Cal 420 Ph 8.0 All I have been doing is 50% WC every 4 weeks with aquarium solutions mag pro plus. Montis seem to grow well. I only have undatas and caps right now. Euphilia don't die, but dont really grow. Thats probably because of lighting. I have appx 200 par at the sand and 520 at water surface.