DWC problem

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lambokid12

Active Member
hello every body I'm a DWC grower with 2 plants that are 3 weeks in to flowering I'm using 1200w LED actually wattage is 250 air temps are 23 degrees and water temps are 20 degrees my E.C levels keep dropping along with my PH and my water levels within 2 days my PH goes from 6 down to 4.5 my E.C levels are really low at 300 but if I have any higher then that then I get nute burn my plants look pretty healthy and have very minor deficiency on leafs many thanks in advance
 
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oill

Well-Known Member
lambokid12 said:
hello every body I'm a DWC grower with 2 plants that are 3 weeks in to flowering I'm using 1200w LED actually wattage is 250 air temps are 23 degrees and water temps are 20 degrees my E.C levels keep dropping along with my PH and my water levels within 2 days my PH goes from 6 down to 4.5 my E.C levels are really low at 300 but if I have any higher then that then I get nute burn my plants look pretty healthy and have very minor deficiency on leafs many thanks in advance
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Common with small systems.... this is why people do rdwc. You probably need more water. Or you'll have to swap the water more regularly.

Are you cleaning everything and you you use hydroguard?

Any microbial activity can consume your nutes and change the ph.
 
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lambokid12

Active Member
oill said:
Common with small systems.... this is why people do rdwc. You probably need more water. Or you'll have to swap the water more regularly.

Are you cleaning everything and you you use hydroguard?

Any microbial activity can consume your nutes and change the ph.
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I change once a week and clean very well I don't use hydroguard I try and keep filled up as much as I can
 
myke

myke

Well-Known Member
lambokid12 said:
my water is just tap water which is 200 e.c and I'm adjusting PH to 6.0
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You need to be more clear,no such thing as 200 EC, figure out what conversation factor your pen is first.Then we know.Ill get a chart for you.
 
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lambokid12

Active Member
so my water straight from tap is 0.2 e.c and once I add nutes it's 0.3 but if I go above that with nute I get nute burn which I know is incredibly low for the size of plants I've used didnt E.C meters to make sure the meters wasn't broke or faulty and same problem my plants are like 3ft high and really bushy
 
myke

myke

Well-Known Member
lambokid12 said:
so my water straight from tap is 0.2 e.c and once I add nutes it's 0.3 but if I go above that with nute I get nute burn which I know is incredibly low for the size of plants I've used didnt E.C meters to make sure the meters wasn't broke or faulty and same problem my plants are like 3ft high and really bushy
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What nutrients Are you using and how many ml/L ?
 
myke

myke

Well-Known Member
lambokid12 said:
I'm using shogun nutes my water tank is 70L and I'm adding 6ml of A & 6Ml of B which is low but if I go over that I get nute burn
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Your EC keeps dropping because its so low,ph dropping could be root issues,you need to use bleach or H2O2.

Is your plant dark green or light green?

Have you tried raising EC to 1.5? Like not a small increase a big increase is what Im asking.
 
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lambokid12

Active Member
myke said:
Your EC keeps dropping because its so low,ph dropping could be root issues,you need to use bleach or H2O2.

Is your plant dark green or light green?

Have you tried raising EC to 1.5? Like not a small increase a big increase is what Im asking.
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myke said:
Your EC keeps dropping because its so low,ph dropping could be root issues,you need to use bleach or H2O2.

Is your plant dark green or light green?

Have you tried raising EC to 1.5? Like not a small increase a big increase is what Im asking.
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I havent tried raising E.C to 1.5 because worried about extreme nute burn I raised to 0.5 and had really bad burnt tips and it is a lovely dark green looking at the plant doesn't seem like there is any problems at all it looks how it should look when I clean the tank I use disinfectant then wash it out and clean all the pump tubes properly
 
myke

myke

Well-Known Member
lambokid12 said:
I havent tried raising E.C to 1.5 because worried about extreme nute burn I raised to 0.5 and had really bad burnt tips and it is a lovely dark green looking at the plant doesn't seem like there is any problems at all it looks how it should look when I clean the tank I use disinfectant then wash it out and clean all the pump tubes properly
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Pump tubes? you said DWC 70l, is this dwc or rdwc?
Pictures sure would help,how do roots look?
 
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