when i went to buy my 250 over a decade ago, the hydro store guy explained that 250w HPS is by far the least effective of all HPS, not just due to being the lowest wattage/lumens but heat output in 250 vs 400 is so close that going for the bigger size makes much more sense. said "its not a true 250w" and gave a few other reasons i cant remember all these years later. but said hed take a 400 over (2) 250s any day, and that was over 10 years ago, id bet technology caught up to these light manufacturers and the demand for better more efficient stuff is phasing out low wattage hpsOh, just to update.
No one seems to be making twin 250s anymore.
Light is causing it? Does look like Mg deficiency .wanted to get some feedback here… pretty sure I’m dealing with a phos def in one of my blueberries - showed up in new growth a couple days after increasing temps and starting CO2 - figure that i pressed fast forward and now needing more phos ASAP - this is only showing in one of the two blueberry pots, other one seems groovy. Confirm? Suggestions for address? I did a very light top dress of 2 tbsp Gaia bloom mix (2-8-4) and 1 tsp bat guano in the 15 gal, watered with light humic/fulvic and bloom microbes - ‘directions’ call for 1tbsp per gallon of soil… always seems way overboard to me… I do have a pretty extensive toolkit of organics to choose from - lemme know what you think
I had another good look today - the newest growth that has now started to leaf out looks pretty darn good… not sure if a def that shows in new growth would necessarily show right away? I’m now starting to lean more towards the explanation being that I blasted them with too much light/enviro change and burnt the newest growth at the time. I initially doubted that because the same issue shows on new growth deep in the centre of the canopy, it just didn’t have that typical patterning of light burn.Light is causing it? Does look like Mg deficiency .
Take it from an old eye hortiluxe HPS disciple; COB LEDS kick major ass. Cheap-ass led panels are total junk; ok for vegging small plants but that’s about it. I found that COB LEDs on the other hand outperform even the most intense HPS bulbs. My Timber Redwood VS increased yields over my old 600w HPS no question hands down. It pulls the same amount of power from the wall yet it is dimmable. You can dial back to about 70% until the plants are in mid bloom which saves power. The lower buds get just as dense as the colas which means more solid nuggets curing in the jars. What used to be larf/popcorn is viable bud; more smoke instead of concentrate/edibles.Oh, just to update.
Now hand watering twice a day with just the right amount now that they are under twin 250 watt HPS. No one seems to be making twin 250s anymore.
It is time to take clones and when they are established then it will be time to flip the lights and see what I have,
I did say this is a seed rescue so no special efforts to win any accolades are being taken.
I did close down my build thread due to harassment but the work continues.I went with 4K HPS because I want to reuse the heat for the human living space and or vent it.
I may try an LED light or two in the future but I trust Hortilux Eye to do just fine.
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Friendly_Grower
What light are you using GThese are my organic bonsai moms, mostly following the oldtimer1 recipe.
The right and left ones are the same plant. I keep two because it's a bit harder to clone, so I have a backup just in case. In the spirit of showing the good along with the bad, the one in the middle I think I trimmed back too hard recently. One of the 4 main branches died and two of them have no new growth. It's getting replaced by a clone of itself soon though.
Also got some cat grass in the front for the cat to munch on
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Just a regular led shop light, I think it's this one:What light are you using G
It looks like something that's going on those tops that should be an immobile nute. I keep forgetting which are immobile. here they are, https://nrcca.cals.cornell.edu/soilFertilityCA/CA1/CA1_print.html . so maybe in order of likelihood Calcium, Mag or Phoswanted to get some feedback here… pretty sure I’m dealing with a phos def in one of my blueberries - showed up in new growth a couple days after increasing temps and starting CO2 - figure that i pressed fast forward and now needing more phos ASAP - this is only showing in one of the two blueberry pots, other one seems groovy. Confirm? Suggestions for address? I did a very light top dress of 2 tbsp Gaia bloom mix (2-8-4) and 1 tsp bat guano in the 15 gal, watered with light humic/fulvic and bloom microbes - ‘directions’ call for 1tbsp per gallon of soil… always seems way overboard to me… I do have a pretty extensive toolkit of organics to choose from - lemme know what you think
I'm with you. I vegged a plant for nearly six months with three to four toppings per branch, and the buds it grew were kinda big, but clustered. I live in a dry climate (my RH hovers at 25% in my tent today), but I was still fighting humidity problems.A word of caution…after drying the last plant we found PM on the inside of the largest colas; not a total loss but I will no longer advocate for growing monster size buds. Never really got bud rot like this until this year but recently I’ve been trying to test the limits of my lighting. Wanted to see just how damn big I could grow big ass buds but now that I know how big they can get under a Timber redwood vs we will no longer try. Will continue to drop the hours of daylight gradually to reduce stretching before the flip but no more “monster” cropping. It’s just too powerful and my basement conditions are apparently not as optimal as I once thought.