Thanks. I have on the 46 gal. 4 vhos. 2-attinics and 2-super attinics i will be added 1-400 watt. mh. 10 k-xm this weekend i ordered the bulb and a 36 in. reflecter today from premiem in indy. I also run 1- iwasaki md40 about 800 gph. that transfers water to and from sump and i have another one in a closed loop, and then i have a wave timer with one rio 1700 i think i have plenty of movement but still have some dead spots. I am running a cal. reactor,a protien skimmer,i add dts phytoplankton and reefs solutions every couple of days. I have 4-fish in the tank 1-blue tang,a six line wrasse,and 2 green blue cromas. I feed the fish every other day i use baby brine ,and emeral entree. This seems to work out well for fish and corals. I have 1-400 watt. mh. 20000 k. on the 29 gal. tank no atinics. My water quality has been vary stable i check all every 7 days now and do a water change of 12 gal. every 2 weeks but i am going to start to do it every 4 weeks. and see how that goes i would see to much diff. in mag. so i will try this for awhile. Water chemistry. Temp. 79.4/ph is always between 8.07 and 8.25/kh-9.3/alk-3.31/mag-1440/cal-450/sal.1.25 no amonia/nitrates/or nitrites. I keep a close eye on it. I do have a chiller for back up just in case the water in the tank starts to heat up the system after i put the 400-watter on the tank. Thanks again everyone. Dan.
