been in the hobby since 82 and havent gave up yet .i now have 1200 gallons of seawater in a greenhouse that is set up to the max about 45thou worth of equipment/live stock equipment includes 2 large rk2 protien fractionators ,2 schuran jetstream2 calcium reactors,lots of pumps mainly sequence, a couple of 400 watt de's for suplimental lighting(on the main sps tank only) ,an rk2 1000mv ozone generator and not to mention all kinds of surplus stuff so i am deep into this to say the least. all this has really started to pay off in the last couple of months the growth is stagering sps,lps and softies all growing.no supliments thats right none other than the calcium reactor . test everthing and you will find it to be close to natural sea water . almost forgot to mention the central air unit that keeps the green house at 70 and the water at 77-79 all year around