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those cuttings look fine to me. that white part of the stem looks like a callous, which preceeds roots. i've never used cloning gel so the size of that particular callous may be gel specific, but i think you'll find you have roots within the next week or so. honestly some strains can take up...

if relays make you nervous, that $80 atc timer TF uses will do what you need.

now thats true i reckon...ive never actually tried to use a 555 setup for anything as critical as half-second intervals...i guess you could add an x10 to make it more sensitive but the 555 is still going to probably fluctuate a bit over time. for a 12v backup tho its a fun project.

is that your water temps? your water really needs to be around 85 or above...only problems i ever had rooting clones was not getting them warm enough.

good luck with that. one of the problems of nutrient formulation trials is that they are nearly impossible if you are recirculating your nutrients and using tapwater. for example, lets say you are having a problem with a micronutrient being locked out because your tapwater ph is too high for...

1. i don't argue with fatman. that dude kicks ass and takes names. 2. when you say store nutes are overpriced, if you mean the bottles of liquid fertilizer available at your local grow shop, (dyna-gro included)...then i have no argument. I agree. they totally suck ass. if however you are...

what kind of setup you are using is going to determine what kind of specs you can go with on commercially available mixes. for example if you are recycling your nutrients as in an ebb/flow system you have a set of parameters (alkalinity and salt buildup) that are not a problem if youre draining...

so you're saying the conditions for the two plants are EXACTLY the same? did they come from seed or are they cuttings from the same plant...different plants (even plants within the same strain) can react differently to all sorts of things such as waterlogging and nutrient...

i think i have a pretty good grasp on the theory behind the formulations and their interaction with my specific city water's ec and alkalinity. a lot of the studies out there are concerned with salt buildup in media like gravel, rockwool and peat, which i won't be dealing with in my aero grow...

alright, this has been a super useful thread so far. stop fucking it up. as i understand fertilizer apps...there are a limited number of sources for each macro nutrient, so even were i to mix my own blend, i'm still going to have most of the same ingredients as say, Peters Pro. in which case...

here's a laymans diagram if you want to save even more...

help us out a bit more... how close is your light? what strain? tap water, filtered, distilled, ro? any auxins or gel or powder in use? what's your water temp? any cover on your machine?

just stick with the micro till your grow gets there. you'll be fine. less is more with young plants.

you could also glue those same panels to plywood (use the tub surround glue that comes it tubes like caulk) and make box-like chambers. it's a little more effort, but a little less engineering if you can't wrap your head around the tube concept.

i reckon i'll have to break down and get an ro system in the next couple months. the reason they give for adding so much EC around here is to actively coat the inside of our water pipes to prevent lead leaching from older homes. isn't that thoughtful of them? the original question was if i...

magnesium as Mg--11 mg/l Sodium as NA--25 mg/l no dice on the bicarbonate

its surface water that is actively hardened... "calcium as CA--50 mg/l hardness as CACO3--150 mg/l alkalinity as CACO3--83 mg/l"

i know what's in the water...60-80 ppm calcium already from the water co. hardening...around here the total ppm sodium, calcium and other good stuff is around 150-160 ppm out of the tap. its really good water, it's just already moderately hard so i'm leery about adding more calcium.

sorry i missed that shit earlier. another dumbass Q...i'm not using RO yet so it's city water all the way...meaning i should have lots and lots and lots of calcium already. is there another way around my situation? does it not really matter all that much? am i basically fucked?

assuming four things: 1. i'm having a hard time locating all the elements for mixing up my own nutes locally... 2. my grow shop don't stock foliage pro... 3. i'd rather not have them order it for me... 4. i'd rather not have it shipped to me either... could i get some ammonium sulfate and...