SMiles

I'm looking for advice and opinion on what amount of water temperature rise is acceptable during an 8 hour metal halide lighting period. I have two, 250 watt mh installed in an enclosed canopy on my 70 gallon reef. I'm using two 4.5 inch fans for cooling which do a pretty good job, but I see steady water temperature increase of about 2/10ths of a degree per hour when the MH are lit. I have my temp controller set to maintain water (heater) temp between 77 and 78 degree f. The conroller is set to ...

A week into my first experience curing LR and beginning to wonder if I'm doing it right. I bought 100 lbs of rock from a wholesaler in California and picked it up at the Seattle airport. I have placed the rock in a 30 gallon Rubbermaid trash can full of salt water (about .022 sg) and have a 600 lph submersible sitting on top of the rock with a pipe running to the bottom. I am heating the water to about 78 f. I can see water movement, but not as much as I expected. After a week the water is clear ...