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The leaves curling up from the margins is generally too much heat/lights too close, do you monitor temperatures?
So I have seen many guides on topping all over the place but it is usually done before the plant has gone through LST but I am looking to do it...
Your setup looks really great but it is hard to see much detail on the plants with the HPS turned on. Try to take pictures just before or after...
It is somewhat hard to tell from the pictures but the spots losing color look similar to light bleaching, what wattage of light and how far away?...
The set up is very well done but you would end up with more light and better penetration with less power using a 250w HPS/MH. I am not 100% sure...
You definitely have heat issues if you are reaching 30C, you want your maximum temperature to be at or under 80F which would be 26.5C. If the...
I have heard that small amounts of peroxide in water can help with root rot, as well as certain types of fungicides that can be used in water as...
I'm sure using an air stone would speed up the process but it isn't necessary, if the guy works at the hydroshop he probably just wants you to buy...
I'm not sure if you actually have light burn, 3 23w CFL's that far away really shouldn't be able to cause light burn. I have started a seedling...
I have heard that a low runoff can mean nutrients are building up in the soil but I have no confirmation of that, I still haven't bought a EC/TDS...
The cool tube is the reflector that just looks like a glass tube, it is the bottom left reflector in the picture in that link. The ballast is the...
With an open air hood like that you could get the light closer if you have a fan blowing between the light and the tops of the plants. Seedlings...
Yeah it isn't my design but I though it looked pretty good, thanks. Yeah your PH has a certain range in which the nutrients will be available to...
Do you adjust the PH of the water going into the pot after you let it sit for a few days? Distilled water will slowly turn acidic when you let it...
Well the PH going in needs to be adjusted so that the PH of the runoff is in the right zone. So say you want 6.5 root zone PH you might need to...
Yeah checking runoff is the water that comes out the bottom after watering, you raise the PH with something alkaline like potassium hydroxide....
To be honest they look over watered and suffering from a nutrient lockout. Can you give us a bit more info by filling out this form? We need...
Are you using a passive or dedicated intake? Try holding a lighter near the spot you think there is a leak and see if it blows out or sucks in.
If the smell is still leaking out then you aren't keeping negative pressure with the fan and filter, try to seal any leaks best as possible you...
Well there are different levels of basic setups and we need to know what you mean by a small budget. Some basic three part nutrients would cost...