Four individual systems Right now.
Modified Red sea 250 with attached 20 gal frag system XR15 pro light on FRAG tank, combo t5 reef bright led on main tank, now @100 gal total mostly sps tank, auto WC, Custom life reef filtration system Fuge and skimmer. KALK ATO chiller mp10's.
30gal red sea 130d lps/softies/anemone tank, kalk ato, reef bright led strip.
40 quarantine set up.
375 total gallon marineland 300 DD main system 9 months old now and stabilized. T5 VHO lights/ BLUE led strip, Fully custom built LIFE REEF sump and FUGE, AWESOME 48" tall skimmer, and 1000+ gallon rated custom Ca reactor, I am expanding into this one ATM bit by bit,
Still lots to learn about the hobby but I have amassed a great collection of real beauties and a FRAG saw will be in my future I think. I have broken past the stage of keeping things alive and now there actually growing out. Which is a big hurdle for many beginners I must admit. Good information and advise is hard to get sometimes and the club has done wonders with respect to quality advise and help in the hobby.