DIY rdwc first bash at it

[Thebigyin]

The charts are good but use it as a guide.You don’t have to follow to the letter,tweak it to suit.
Maybe try 4ml per litre and see what EC/ph that gives you.

Yeah I'll go with the 4ml and then check the numbers, with it being new to my plants I kinda thought I might need to dial it down a bit.

[Thebigyin]

Ok so I've administered 320ml of the ionic bloom, 30ml cal/mag, the EC was 0.9 with a pH of 6.3, I'll go back later and take more reading's, found it easy to do with my large syringe, no mixing powder which was nice.

[bigbadbillybob]

i wouldnt go over half the recommendation. its not needed.
id aim for 1.2/1.3 ec at week 7.
it also shouldnt need cal mag this far in, if you are feeding it at correct ec, can i ask why are you adding it?....habit?

[Thebigyin]

i wouldnt go over half the recommendation. its not needed.
id aim for 1.2/1.3 ec at week 7.
it also shouldnt need cal mag this far in, if you are feeding it at correct ec, can i ask why are you adding it?....habit?

I'm adding extra cal/mag because I'm running LED light, and the general consensus is that it's good to have it with this type of light, I've seen it posted else where and that's behind my thinking.

[Thebigyin]

Just checked again, EC 0.93, pH 6.7, so it's went up on both counts, I'll check again at lights off,

[bigbadbillybob]

the ph always goes up in the first 24 hours in these systems,
As the water warms up, and the action of the airstones on a fresh res, it slowly releases CO2 into the atmosphere, which naturally increases pH levels. The strength of your nutrient solution could also affect pH drift. If the solution is too weak, pH is likely to rapidly rise as the plants absorb the available nutrients out of the solution.

[Farmer Geddon]

Once mixed with nutrients, acid loses some of its acidity. With a weak mix, more pH down is used and the effect of reduced acidity is more pronounced.

With a mix that needs no pH down, ime the pH stays where it started.

[Thebigyin]

It's dropped to a pH of 6 and has stayed there so far, it's looking promising and plants are looking good, this Ionic stuff looks to be right on the money stability wise.

[Thebigyin]

Update on the grow, I've been away on holiday for the last ten days and not back until Saturday, had a mate looking after things and the ionic seems to have been stable enough, a few leaf's look to be changing colour but on the whole it looks ok from a distance going into week eight.

[Thebigyin]

Finally got back to the grow tonight, eight weeks in, one plant looks weird and the other seems more conventional, I don't know lol, obviously not ready yet but putting weight on