Nutrient Burn?

B

Beavercat

Member

• Apr 11, 2017

• #1

I went from seedling nutrients 1/4 tsp per gallon to mild vegetative 1tsp per gal with General Hydroponics, and the plant seems to be being nute burnt, so I flushed and lowered nutrients. I am growing in a 5 gallon dwc Bubbler filled with 3 gal of water now with about 1/2 tsp of flora micro, 1/2 tsp of flora grow, and 1/2 tsp flora bloom. Im growing in a tent with a 450 watt LED viparspectra and small fan blowing.
It seems like the plant is nutreient burnt, but IDK this is my first hydroponics grow. Any advice would be amazing!

 

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rkymtnman

Well-Known Member

• Apr 11, 2017

• #2

are you measuring pH and EC/ppm?

 

B

Beavercat

Member

• Apr 11, 2017

• #3

I'm measuring PH at about 5.7 and I used PH Down, but did not check ppm. Im not sure exactly what ppm is though.

 

rkymtnman

Well-Known Member

• Apr 11, 2017

• #4

2.5mL of each might be too much for only 3 gals water.

how do the roots look? healthy and white?

 

rkymtnman

Well-Known Member

• Apr 11, 2017

• #5

Beavercat said:

Im not sure exactly what ppm is though.

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buy this or something similar.
http://www.ebay.com/itm/HM-Digital-...786101?hash=item3efba3c3f5:g:rsEAAOSwPhdU0u0J

 

rkymtnman

Well-Known Member

• Apr 11, 2017

• #6

EC or ppm measures basically how strong or weak your nute solution is.

for a plant that size, i'd go for something like 0.3 to 0.5 EC.

and you also have to measure what your water EC is too. RO water is 0 EC but well or tap can be anywhere from 0 to 0.5 Ec which you have to factor in as well.

 

B

Beavercat

Member

• Apr 11, 2017

• #7

I think they are healthy. They are just beginning to get through the net pot.

 

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B

Beavercat

Member

• Apr 11, 2017

• #8

rkymtnman said:

EC or ppm measures basically how strong or weak your nute solution is.

for a plant that size, i'd go for something like 0.3 to 0.5 EC.

and you also have to measure what your water EC is too. RO water is 0 EC but well or tap can be anywhere from 0 to 0.5 Ec which you have to factor in as well.

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That could be the problem because I'm using tap water.

 

rkymtnman

Well-Known Member

• Apr 11, 2017

• #9

Beavercat said:

That could be the problem because I'm using tap water.

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that could def be it. your tap could be high and then adding nutes makes it even stronger.

i'd pick up a EC meter ASAP.

 

rkymtnman

Well-Known Member

• Apr 11, 2017

• #10

and maybe think of switching over to RO or distilled water for the time being. it makes hydro a lot easier if you know there is nothing in your water besides what you put in it.

 

B

Beavercat

Member

• Apr 11, 2017

• #11

I'll have to pick one up. Thanks for the help!