Need some opinions on T5's

If you go with t5's ask the rep what a good combo is for your tank. I just bought eight new bulbs and the combo I got is great, the reps normally know what their talking about.
 

wangotango

Active Member
Originally Posted by privatejoker
http:///forum/post/2788163
If you go with t5's ask the rep what a good combo is for your tank. I just bought eight new bulbs and the combo I got is great, the reps normally know what their talking about.
Or reefraff.
-Justin
 

mr_x

Active Member
Originally Posted by Stanlalee
http:///forum/post/2788121
because its a horticultural set up designed for intensity. once again you have chosen an improbable and impracticle example for the aquarium trade as I dont know anyone wanting to deal with the heat or expense of running twin bulbs and ballast per reflector or even require that sort of intensity for that matter. I already conceded it you are talking about two bulbs impractically close or any other variation from aquarium purposes you are right. does using that example really answer the question about 750w of T5 vs 750w of MH as it relates to aquarium purposes. I have seen ONE home aquarium use a twin bulb reflector in all my life.

the reason people don't use twin bulb reflectors is that we don't need them. rarely is there a tank over 30" deep. you said that one 250 watt halide puts out the same amount of light as 2. i say you are completely incorrect about that. it doesn't matter if it's for plants, or corals. both of them are photosynthetic and use light. this dual bulb unit puts out more lumens than a single halide unit.
 

stanlalee

Active Member
Originally Posted by Mr_X
http:///forum/post/2789005
the reason people don't use twin bulb reflectors is that we don't need them. rarely is there a tank over 30" deep. you said that one 250 watt halide puts out the same amount of light as 2. i say you are completely incorrect about that. it doesn't matter if it's for plants, or corals. both of them are photosynthetic and use light. this dual bulb unit puts out more lumens than a single halide unit.
man, is that not EXACTLY what I just said in the last post? ( I believe I said we dont need that type of intensity and its impracticle as two together still leaves us with a half dark tank unless we are using two bulbs and ballast per 2-3ft making it impracticle). YES YES YES putting MH bulbs right next to each other would make a more intense area but seeing how it is NEVER DONE for aquarium purposes (make believe scenario) I STILL dont see how this answers anything as it relates to someone comparing 750w of T5 to 750w of MH. T5s are adding all the time to each other with no such coverage concerns so you cant compare adding MH bulbs to adding T5 bulbs. a tank with 216w of good T5s across it has about the same intensity as a tank with two average 250w halides. IF you configure the two halides any other way than as it relates to aquariums you either a) dont have coverage of the tank because they are too close together or b) dont have the intended intensity of 250w halides because they are raised too high however if you add three more T5 bulbs you still have great coverage and much more intensity. are you going to average the PAR of the dark areas and covered areas with the twin bulb MH set up to compare with the fully covered T5 tank?
 

natclanwy

Active Member
There really isn't any benifit with using one or the other they both have some upsides and downsides and it is all down to personal preference.
T5's are not more energy efficient than Halides
Bulb cost is just as high if not higher with T5's
Both types of lights can cause heat issues
T5's have less shadowing and more consistant light across the tank and front to back than halides do.
I prefer the look of Halides better than T5's but like I said it is up to your personal preference.
 

mr_x

Active Member
Originally Posted by Rotarymagic
http:///forum/post/2785483
780watts of T5HO is equivalent to way more than 750watts of MH.. The emphasis is growing SPS and what I recommended will have him selling frags every other day in no time LOL..
i was referring to this statement. i simply said that choosing t-5's over halides is not going to make your corals grow faster.
and this one-
"you only add more for coverage. with MH you either have the intensity of 70w, 150w, 175w, 250w, 400w or 1000w. you can add a hundred of any one and you still have the intensity of whatever watt bulbs you are using."
which i think you just agreed was false.
 

stanlalee

Active Member
Originally Posted by Mr_X
http:///forum/post/2789831
and this one-
"you only add more for coverage. with MH you either have the intensity of 70w, 150w, 175w, 250w, 400w or 1000w. you can add a hundred of any one and you still have the intensity of whatever watt bulbs you are using."
which i think you just agreed was false.


the difference is you are comparing generalized possibilities of MH where as my statement assumes and specifies the standard practice of one MH per 1.5-3ft. your right but who cares, nobody is using them in a configuration you are using as examples to make your point(at least not for aquariums). I chose to add some protocols into the equation that are used 99% of the time. are we not discussing this for real world usage or just to prove technical points that are never going to be put into practice. If someone has two 150w MH over a 4ft tank and wants more intensity are you going to suggest adding two more MH bulbs to increase intensity? No, you are going to stick to a common practice of one MH bulb per X amount of distance and suggest higher wattage bulbs. so whats the point of talking about two MH bulbs 2" apart?
 

mr_x

Active Member
Originally Posted by Stanlalee
http:///forum/post/2785971
you can add a hundred of any one and you still have the intensity of whatever watt bulbs you are using.

hmm... an example like a hundred mh bulbs is "real world usage"?
if you had the job to build and take care of a public aquarium, and this tank was 5' deep, what would you use to light it? t-5's?
 

stanlalee

Active Member
Originally Posted by Mr_X
http:///forum/post/2790361

hmm... an example like a hundred mh bulbs is "real world usage"?
if you had the job to build and take care of a public aquarium, and this tank was 5' deep, what would you use to light it? t-5's?
I'd use the sun but its not my job or anybody who's here asking. I chose not to use T5 for my 30g
I prefer MH. one or a hundred bulbs also known as sarcasm but the twin bulb agricultural set up you meant it (what are those thousand watters)
 

mr_x

Active Member
you sure are schooled about everyone's backrounds here. neat trick! did that come with your reef tank lighting degree? so, tell me..how many box tops did you have to send in for that?
 

stanlalee

Active Member
your right, I just assumed people surfing the "new hobbyist" section arent responsible for designing public aquarium lighting (and many including yourself left that out their public profile). you know I'm being silly and sarcastic as we have gone way past usefullness here lol. I got your point along time ago but you should have gotten mine as well.
 
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