What k value gives the best acropora colour?

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hey squishyfish, 3 400 watts huh, have you seen how bright they are? i have 3 400 watts and 4x65 antics and WOW! i had to build a piece in front so that it didnt blind me lol. but it works great.
 
I have seen how bright they are on the LFS tanks, but that is a whole different situation! I'm pretty sure they will rock the tank. Granted I may have to invest in a good set of welding goggles to look at the tank!

This is how I am going to set it up...tell me what you think.

its a 175 bow. I am going to take the canopy and trace the outline onto a piece of 1/2 ply (maybe 3/4 inch). That way I have the "footprint." then I am going to fit it with a lip to rest on and trim the sides w/ birch veneer. Basically what I'm doing is building a cap to go on the cap! Then I will paint it black to match.

This will allow me to retro all of my lights (including 2 vho actinics), and two exhaust fans into the top and still have it look "stock." Its vented on the back and will have two exhaust fans...should work like a charm. I can put a door on the front on hinges for access and handles on each end (top) so I cant just lift it off. I can wait to start the project!
 
Just wondering but isn't watts per gallon some what a waste of time. I mean a better thing to look at is par, which I see you guys mentioned but you guys haven't put much weight to it.
I just think that watts per gallon is a big waste of time. For example....

400w of PC doesn't even come close to 400w MH, the par is nowhere in the same area.

I just think ppl should reference more to par, instead of watts per gallon, its just a better judge of what you need.

thanks
JR
 
I just think ppl should reference more to par, instead of watts per gallon, its just a better judge of what you need.

I wholeheartedly agree, the problem is every manufacturer tells you how many watts the bulb consumes and no manufacturer tells you the par of their bulb. So unless you have a PAR meter and have tested each and every bulb...it becomes difficult to recommend lighting by PAR.
 
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