46g Bow front lighting help

[RyanG]

Heres some scientific research that give a comparison of several MH lamps vs T5 Ho 54 watt. They are quites similar. T5s are actually superior to MH in lumens per watt.

Table 13

[Bifferwine]

Originally Posted by RyanG

Heres some scientific research that give a comparison of several MH lamps vs T5 Ho 54 watt. They are quites similar. T5s are actually superior to MH in lumens per watt.

Table 13

[reeffreak]

Ryan,your the man!!!

[fatman]

Ignorance ruffles me. Did you ruffle my feathers? Lumens are getting close, but Lux are not there. T-5's are as I said shallow water lamps. My position is the same. Deep water tanks should use more intense lights than shallower tanks. Spread your light out over a long tube area and you have low intensity. What part of intensity and its direct relationship with Lux do you not seem capable of understanding. Put enough T-5 tubes side by side and you will get Lumens nearly as high as a halide for a sigle tube of nearly the same wattage as all the T-5's combined, (and the same amount of heat or more). T-5's are less efficient at converting electricity to usable light at usable intensities. But the halide lights penetrate to deeper depths. Yes, but the T-5's have more lumens further from the center of the tube. Higher lux readings at deeper depths from halides, because the light is concentrated not spread out like a T-5. Simple easy concepts and facts. Small tanks lower Lux lights. Let me know when you find scientific data that I am wrong, not data that makes a T-5 little close to halides in an area I do not even argue. Unless you can come up with a scientific point of merit worth discussing I am through with this topic.

[RyanG]

Heres another scientific study lets do some simple math so we're comparing apples to apples

Metal Halide or T5 HO Fluorescents for Planted & Reef Aquariums

In this particular test you are getting 92.6 lumens per watt with t5s
you are getting 80 lumens per watt with halides.

You are getting 20,000 lumens with 216 watts lets see what the comparison is when the watts are similar?
378 watts(T5) x 92.6(lumens per watt)=35002.8 lumens in a similarly powered fixture.

In my book 35,000 is greater than 32,000 lumens, every way you look at it. Im not stupid please dont talk that way to me. So theres your metal halide lighting for you.

[RyanG]

Heres another link in this chain

T5 vs Metal Halide debate answered - Saltwaterfish.com Message Boards

[fatman]

And the 400 watt halides will provide those same Lumens at 4 foot depth or more. Your T-5's will provide them for 12 inches. LUX! LUX! LUX! Ignorance still ruffles my feathers. Lux decreases with depth, IE more depth less Lumens per square meter. T-5's have good Lumens ang good Lux at shallow depths. Halides have overwhelming Lumens and Lux at shallow depths and good Lumens and Lux at depths. My position is still the same. Deep tanks need halides for optimal hard coral growth. T-5's are good for small tanks and shallow larger tanks, or tanls with out coral in the bottom half of the tank requiring high Lux lighting. I stand in the same spot and say the same thing. Your turning in circles and trying to make differnt something that is in print. Who cares if one halide 400 watt halide tube got a few less lumens when it got those lumens to a place the T-5 can never get the light to in any intensity. Public aquariums would be very dark if they had to depend on T-5 lighting instead of halides. You probably could not even see the glow of a T-5 from the bottom of a deep public aquarium. No lux. Got that yet? Quit trying to compare apples to oranges. You have a little tank, use your little lights. I have a deep tank I will use halides and keep my SPS happy and growing. I have to runs fans to evaporate enough water to use enough Kalkwasser for make up water to keep my calcium levels up, and I need to add acid to mt Kalkwasser to dissolved enough Calcium hydroxide into my Kalkwasser on top of that. T-5's will not supply enough intense lighting to force enough growth out of SPS to use that much calcium. My only other choice is to go with a calcium reactor. How many people with deep tanks (and mine is only 25.5 inches deep) running T-5's do you know who need that much calcium supplementation. Nough said!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[RyanG]

Ive showed you three different scientific studies that show that the lumen value is higher show me anything about the lux other than what comes from your mouth.

[Altohombre]

so should I get a T5 or a MH?




ROFL

[RyanG]

A T5!!!!!!!