Ebb and Flow need Expert advice

-What strain, Seed bank, or bag seed (photo or auto)

  • Bag seed

-Age of plant

  • 7 Weeks

-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF

  • Hydroponics

-Vessels: Type and capacity of container (fabric, plastic, etc)

  • 80 Litre reservoir (Using only 28 liters of water)

-PH and TDS of Water, Solution, runoff (if Applicable)
PH 5.5-6.2 ( I let it drift a bit)

-PPM/TDS or EC of nutrient solution if applicable
On Feb 22nd PPM was 420

-Method used to measure PH and TDS

  • PH pen (HANNA), TDS (Local brand pen) both digital

-Indoor or Outdoor if indoor, size of grow space

  • Indoor (2 by 2 feet)

-Light system List brand and wattage/spectrum

-Actual wattage draw of lights

  • I dont know

-Current Light Schedule

  • 12/12

-Temps; Day, Night

  • 18 Deg C, 6 Dec C

-Humidity; Day, Night

  • 50 Percent Plus always

-Ventilation system; Yes, No, Size

  • No

-AC, Humidifier, De-humidifier,

  • No

-Co2; Yes, No
+No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?

  • Ebb and FLow

-Distance of liquid below net pot (DWC)
+N/A

-Temperature of reservoir

  • 18 to 20 Deg C

-TDS of nutrient solution
22nd Feb PPM 420

-Amount of air to solution

  • I dont know, 1x air pump which bubbles 24/ 7

Man i don’t know about doing a full nutrient water change every 2 weeks, seems like a lot of work. But i’ve read about this rule of thumb where you keep topping off the solution till the topping off equals the solution volume (i.e. If the res was 80 Liters and you topped of for about 2 weeks, which incidentally equals 80 liters, its time for a full res change). Also i heard people get away with doing only 2 or 3 full nutrient changes but that’s learned from experience.

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