cyantific said:

no youre talking to someone whos been doing this shit for a good while and seen it all happen ... with wattage in the 100s on one side the maturation process will be lopsided for the flush ... once those big ones right on the light start opening the others will follow suit in w/e stage they are in and cap out

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Junkboxer said:

ok so i took some of what you guys said into account and made some changes. i put the tubs on a cardboard box so they are a foot off the ground. i also lined the sides of the walls with mylar. whattaya think?

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scottandrew said:

I think elevating them is a good idea, most agree that the majority of contams are on the the first foot of the floor.  Nice setup

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Citizen13 said:

cyantific said:

no youre talking to someone whos been doing this shit for a good while and seen it all happen ... with wattage in the 100s on one side the maturation process will be lopsided for the flush ... once those big ones right on the light start opening the others will follow suit in w/e stage they are in and cap out

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are you going to insist that light makes mushrooms grow faster? and that the closer to the light they are, the faster they will grow?

please don't.

edit: and since when did wattage have ANYTHING to do with anything? were talking about kelvins here, spectrums, not how much electricity your bulb uses.

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I think it's pretty damned obvious that mycelium is converting light into some other form of energy that is useful to it.  Mushrooms grown with proper lighting pin more prolifically, grow fatter and meatier with considerably more finish weight, and are more vigorous and healthy looking.

It's worthless to compare mushrooms to plants.  Mycelium is as different from plants as we are.  The absence of photosynthesis doesn't mean the mycelium isn't deriving energy from the light.

To answer the original poster, you'll get mushrooms from the HPS.  It will make up somewhat in intensity what it lacks in proper spectrum.  I've had excellent results with a 400 watt MH which was already running in the room anyway.  MH is around 4,000 Kelvin,  which is closer to what we're looking for than an HPS which tends to run around 2700 Kelvin.  As said above, unless you're already running the HPS for something else, get a fluorescent fixture and save the HPS for another day.
RR

yeah i insist ... and i just did