What meters do i need??? Ph and TDS??

Somone please tell me every meter you need??? I have ph and i am about to purchase a tds meter....anything else??

That should do it for ya for the expensive stuff.
You also need a simple fishtank thermometer for your res, and at least 1 thermometer with a %RH reading (about $6 at wal mart) for the plant area.

alright thanks alot!!!

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Originally Posted by stinkyattic

That should do it for ya for the expensive stuff.
You also need a simple fishtank thermometer for your res, and at least 1 thermometer with a %RH reading (about $6 at wal mart) for the plant area.

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this might be a dumb question but what is %RH reading ? Thanks in advance

:smokin:

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Originally Posted by BRoSKO

this might be a dumb question but what is %RH reading ? Thanks in advance

:smokin:

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Not a stupid question, friend. %RH stands for percent relative humidity. Our friend MJ has a range that the %RH should be in during veg and another during flower.