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thanks for the reply, ill cut it back next time i feed

they are entering week 5 under two PL-L55 lamps, nutes are at 1500ppm (water w/o nutes come up @210) using Lucas formula w/ GH Micro+Bloom in rockwool handwatered, PH is/should be 6.0 it ran a bit high this past week and I flushed till run off was 5.8 right before I took the pic above (pics...

As the thread title suggests, I am wondering if anyone cares to take a shot at diagnosing these spots. (foliage in photos appear more yellow than in person, in real life plants appear mostly healthy)

thanks for the info though not interested in switching over to a sog for this particular grow - I guess my questions was more in regards to weather 6 plants vs. 2-4 plants in same 2.5 x 3.5 area, which would produce more bud? does a more mature plant produce more buds because it has more bud...

my room is roughly 2.5ft x 3.5ft x 5ft and i am currently on day 30 for 6 my gals - they are currently under T5s equaling roughly 16k-20k lumens growing in rockwool and being handwatered - my question is right now they are taking up approx. 2/3 the canopy area and i feel like i could go ahead...

thanks, I think I will do the same comparison and see if I notice a difference

I was told that there are 3 different kinds (densities) of Grodan and they are labeled Delta, Classic, and one other inbetween the two. Apparently the Classic which is usually the slabs drains quicker where as the Delta which are usually the blocks hold more water... this would make sense if...

lets bump this up...

np...im just glad to finally know that the meter is calibrated correctly

i feel like my 4x4 cubes stay wet for days after I totally soak them, i water twice a week and they still never dry out... I have them in 2.5ga buckets with the rest of the space filled around the cube with the small Grodan Grow Chunks. temps 75/80 humidity 55% @i81two do you have your fans...

Hi, just a few questions about the hard water issue that I have not been able to find a clear and to the point answer to in any of the threads that come up from searching. 1. My tap reads 200-210ppm should I start using the Hard Water FloraMicro? (ive seen it written both that 200 is at the...

cool, thanks for the info

the chart didn't copy over correctly but you can check it out here: http://www.hydroponics.net/learn/debate_over_ec_and_tds.asp I look fwd to hearing your thoughts on the 442 conversion @ .7

I am definitely the newb here but are you all sure about the Hanna Solution being .5 conversion? The reason I ask is because I have read that a 442 conversion uses the .7 rate and that the NaCi conversion is .5 That said I would think that the number on the Hanna Solution which is labeled...

well if the Lucas formula is 1326 with a starting point of 0 ppm then it would make sense that my reading would be 1530ish since my tap is 210... does that sound right?

so... I am thinking that I have the correct solution (70442) which should calibrate a pen to 1500 @ .7

Hi, ive posted this under another topic but noone seems to know the answer so i will ask again here. I've recently purchased an Oakton EcoTestr TDS meter and first thing I did was to calibrate it with the Hanna HI 70442 1500ppm packet I was given at the store. I am concerned that since it does...

So i bought an Oakton TDS Ecotestr today and the sales associate sold me 1500 calibration solution... so I when I tested the solution it was way off so I calibrated it to 1500. The solution was by Hanna with no indications as to which conversion .5 or .7 will read @1500. Did I just totally...

bump it up

So when test my Lucas formula of 8/16 it comes out to 1560ppm and my tap is 200-210... does that sound right? Lucas formula for floros of 5/10 reads about 1160ppm.....And if I mix up aggressive growth formula from GH 3 part (2-3-1) my TDS meter reads "out of range" and my range should be up to...