Very nice pic! That would blind my co-workers pretty quick!

How do you keep your sandbed still with all that flow!

Your cube is the perfect dimensions for that pendant. I love that "beam" like look... just reminds me of a nice beam of natural sunlight . Very nice.

Thanks for the compliments :biggrin: I keep the flow of the sieo pointed upward to prevent the movement of sand. I also have a rio 1100 behind the rock at the bottom left corner to keep the deleterious from settling.

Although rather late in the thread, lol, I wanted to adress the 400W heat issue. Over my 75g tank, I have 2x 400W Halides. The tank is covered with a full glass cover. My above tank fuge is not covered, however it doesnt get much flow, maybe 70-120gph. I only have 2 4" fans which remove heat from the closed canopy inside the setup, and my main tank never goes above 80 degrees when both halides are on. I have no doubt that a 400W bulb, pendant style inside a closed canopy over my 28g will do just fine and not cause heat problems, as I believe two 3 or 4" input and output fans should remove all the heat from the canopy. They can move alot of air and when there is nowhere for the air to go but in and out two holes, then you shouldnt get too many problems. My 75g's canopy is never warm, I never have a problem working under the lights even with the hood open.

Just my 2 cents...

Chris

BTW, Reefhawk, the tank looks great!

Thanks for the input Chris. I might upgrade the lighting later, so good info.

When I work under my hanging canopy on my 180, I get a sunburn :)

No problem.

Well, I meant that even having my arms within 6" of the bulbs is not hot, whereas typically it almost burns to do so.

Chris

Yeah, I have no fans on my hanging canopy, my tank doesnt overheat, so no need.