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As far as the roots showing through the rockwool cubes goes it shouldnt be an issue for an extra day or two, As long as they stay moist and dont start turning green from light exposure. But you might want to consider getting some 4" cubes so the plants can develop a more substantial and hardy...

Absolutely, Once you get a cloner dialed they can be very effective.

As far as the heat mat goes it definitely would be beneficial if your containers are sitting directly on a cold cement slab. Something else I would suggest is elevating the containers above the cement atleaat a few inches, Maybe on a layer or two of plywood to help insulate the containers...

Nice, I myself dont always use a humi-dome when taking cuttings in favor of frequent misting. However if you read Djreed57's earlier post he said he IS using a dome, as such the plants are going to experience some degree of shock when transitioning. I was simply suggesting he extend the clones...

Lower quality led grow lights often use inferior generic components. The catch though is lights built with top quality brands such as CREE LED's are far more expensive to produce which naturally makes them cost substantially more to buy. If the more expensive light lasts twice as long then its...

One obvious thing that jumps out at me is temp. I would consider trying a seedling warming mat to encourage faster growth. They can be purchased online or at any garden supply shop for a reasonable price and do usually make a noticeable difference. Also remember the strain plays a part in...

Spanky84 There are countless ways to improvise a carbon filter, Some more elaborate than others. A crude and cheap method requires a coffee can, a 8" to 6" sheet metal reducer, a 12" x 24" piece of small mesh screen (hardware cloth), a piece of filter floss and panty hose, duct tape, and a...

Sorry for the absence the last two days, Had to call in sick due to an extreme migraine and slept all day. It happens every so often unfortunately, And of course i then had to put in some extra hours to get caught back up at work. Anyways im here now and will do my best to answer both of your...

it definitely is beneficial to have a wider temp swing toward the end of flowering, Makes a substantial difference in resin production.

As far as heat issues go i run one of these 120w leds http://www.evolutiongrowled.com/evolution-basic-led-grow-lights.html in my 18 cf. clone/veg closet with a minimal 50 cfm exhaust fan and i have no trouble maintaining 70F at all. in fact i actually had to add a small cfl to run at night...

The more you can oxygenate the better. It would be best to include the stones in the reservoir, if incorporated into the controller unit airstones might cause issues. if it were me I would definitely be adding oxygen to the res. The higher the oxygen saturation the better the system will...

Well you could switch to led and your heat issue would be over! ;-) Otherwise you might be able to use a y connector and push another exhaust fan through the existing filter. if your existing filter cant handle the extra volume i can walk you through the steps to make a high capacity diy...

Sounds like you have it dialed in, Res temp sounds great. Might be beneficial if you can get the overall grow temp down though. Personally I aim for around 72 degrees, But anywhere from 70 to 80 is ok. Those running co2 can get away with slightly higher temps. If you can drop your temp 10...

Trent, If your reason for using is legitimately for stomach issue or pain management it may help convince your mother if you stopped smoking and started ingesting the mmj. I have had stomach issue since I was a child and in my early teens I discovered pot really helped settle my nausea...

If your res is close to 90 degrees than your grow room must be Scorching! That or your pump is way wayyy overheating the res.

Again not a hydro expert, But I believe the "Sweet spot" is 65-68F. Any warmer and you will be battling with bacteria in the reservoir. Also at temps over 70F the nutrient solution in the reservoir will absorb/hold less oxygen as temps increase. At 68F you have the most oxygen content as well...

Sometimes they are just finicky though. A while back I was growing a pre-86 blueberry strain and was having a hell of a time feeding it, It just didnt seem to be doing well at all. I tried adjusting nutrients, lighting, etc. and just couldnt get it to grow well. At the time I had gone a bit...

Keep in mind there is always the chance you didnt receive the strain you expected. With clones/cuttings its notoriously difficult to get true strains a lot of the time. And even with seeds its not always a guarantee, Especially if its not from a reputable supplier. I had ordered some beans of...

Also a possibility, But with a presumably old and well used imported light its not unlikely that all 3 fan died out. From what ive seen and heard the cheap china lights (ebay, allibaba, etc) use bottom barrel fan and power supplies. So i guess its just a question of which died first. If you...

Hope that was helpful mc130p. Hate for you to loose a working light over $10 of readily available parts. Or even worse in the event of a unlikely fire, Your home is worth more than $10 and a half hour of work, Not to mention your life!