Hyrdo Resevoir Change?

poundpusher2009

Well-Known Member

• Jan 4, 2010

• #1

I have very little knowledge of Hydro. If you were to have a 70 gallon resovoir how often does the water have to be changed?

 

MEANGREEN69

Well-Known Member

• Jan 4, 2010

• #2

ok...what size tray do u have? and how many plants? and what are they in?: (coco,rockwool,hyroton)....

 

poundpusher2009

Well-Known Member

• Jan 4, 2010

• #3

Well I dont have any of this yet I was just wondering if there was a formula for the madness or if it was up to the grower. Lets just say it 2 8 x 4 24 plants. in hydroton.

 

MEANGREEN69

Well-Known Member

• Jan 4, 2010

• #4

i whould change it every week to 9 days..depending on what nutes you use?...because some nutes just get nasty.....

 

Camel09

Active Member

• Jan 5, 2010

• #5

MEANGREEN69 said:

i whould change it every week to 9 days..depending on what nutes you use?...because some nutes just get nasty.....

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I agree with Meangreen. I have a 40 gal res that I change weekly.

 

smppro

Well-Known Member

• Jan 5, 2010

• #6

some people change it once a week, some change it every 2 weeks, and some never change it, its up to you and your plants.

 

I

Illegal Smile

Guest

• Jan 5, 2010

• #7

The reason for changing it regularly is that is the only way to reset the nute concentration. Plants don't always uptake equal proportions of all nutes and you don't know which are getting to be in higher or lower amounts. You can check ppms, but it doesn't tell you ppms of "what."

 

poundpusher2009

Well-Known Member

• Jan 5, 2010

• #8

Thanks for the help appreciate it.

 

fatman7574

New Member

• Jan 5, 2010

• #9

Illegal Smile said:

The reason for changing it regularly is that is the only way to reset the nute concentration. Plants don't always uptake equal proportions of all nutes and you don't know which are getting to be in higher or lower amounts. You can check ppms, but it doesn't tell you ppms of "what."

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Good reply..