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You can get neoprene inserts to block the light off the RW and prevent algae.

Oh, one more thing...at day 21, my indicas are around 13 inches tall and sativa's were 22"....that is under 1000 watt HPS and LST.

My ppm are at 1480 at week 4 veg...they end up at 1680 at the end of flower...I grow aero, not sure if that makes much of a difference, it shouldn't. If tour air temp is 80, that's fine...you can safely go to 85 or 90 with good air flow during veg. During flower though it should be...

At the end of veg mine is at 1480 ppm...in flower it goes back down to 1200 during the first week or two and then all the way back up to 1680.

Your water is excellent quality and will save you the money of having to supplement what distiller and RO water takes out.

Decide about the water once you have your tds meter. Fill up a cup, let it sit overnight and then measure the ppm the next day. If it is under 350ish, just use it. If you go with distiller water you will most likey end up having to use a cal/mag supplement....tap water already has them added.

Did you dose your silicon correctly? Sometimes if you measure too much (tbsp instead of tsp) it can congeal.

I keep it between 5.8-6.2. Light cycle plays no effect on when I choose to run my pump.

Personal preference. Most people average 4 weeks. Some grow to 9" or 12" and then flip. Just know that a sativa will double or triple in size, and an indica will double. Since WW Is heavy sativa you should measure how tall your system will allow your plant to get, then divide that number by 3...

I put some hooks in the wall all around the grow, and then tie the plant to the hooks (not tight!).

I too change the ppm of my Rez every week. With Fox Farms feeding schedule you use something different every week, or add something new. However, there are two times that the feeding stays the same more than a week. I go ahead and extend the Rez time a little if I can. However, I definitely...

She looks really good, but I would go ahead and get rid of that foil. Not just for the obvious "hot spots" and poor reflecting quality, but because of the reaction with nutrients it can cause. I didn't know any better, and covered mine just like yours....well a couple of weeks into it the...

Humidity plays little effect on temperature, somewhat on pressure, but not temp.

I only use razor blades, and I use 4 5' CFL's on 18 hours a day...no indirect lighting here. I also don't pay any attention to where I take my clones from. I choose the healthiest plants and then look for the healthiest fullest looking branch. I count from the Tip of the branch backwards 3 nodes...

Some mediums can buffer pH somewhat. However, now that you are growing without any medium, pH will make or break you. You should also have a ppm/EC/tds meter, without it you are pretty much destined to failure in hydro. Welcome to hydro, get ready to experience some of the quickest growth you...

Oh, and my timer is set to 30 min on, 30 min off.

I use RW with great success. I dip in clonex only, and then straight into RW cubes that have been soaked in h2o until the pH stops changing. I also use 1/4 strength of FF Big Bloom (guano and castings...very mild organic formula). I cut large fan leaves off and foliar feed with the same Big...

I don't know how old your plants are to make an exact recommendation, but at week 4, I am at 1.9 EC (1200ppm roughly).

Well, it is impossible to say without seeing pics. Right off, I can tell you 3 cfl lights isn't enough to grow 5, let alone 15.

I put that on my sig because a lot of people who are new to this site (like I am) have no idea what rep is. All I kept getting was likes. And considering I am not new to growing, but I am just to the is forum, so it kinda sucks having to look like a noob when I'm not. I've deleted it from my...