Leathers, zoas and sps, oh my... (who does it?)

[fkshiu]

I have a very large tongan leather along with almost everything under the sun including a bunch of SPS. I run a calcium reactor, carbon (24/7) and GFO. For the SPS, my polyp extension is pretty good and my colours are not spectacular but "OK". I don't dose a single thing aside from adding CaCl and Mg to my water change water since I use IO salt.