Loyal to the Oil

Sticky. The presently stickied thread NOT ONCE explain what PPS is. This info is need for people who want an overview and i think thats the point of a sticky.

snickle

The goal of adding it before the lights come on is to make sure the nutrient are available to the plants once they start the photosynthesis cycle.

The recommended timing is and hour or so before lights, so that the solutions are thoroughly mixed into the water by lights on.

Should be no major issue with dosing before bed.

LilLou

Left C

I was using 500ml instead of 1 L. Why I have no idea. Now I have to take the plastic containers back to Pathmark. You guys think its easy walking around in a fog???

I was using the double strength solution.

Edward,

I will look into the TDS tester only. I think they have a few of the pen type on ebay.

Is it feasible to add the CaSO4 or CaCl2 to the #1 solution or would you dose it separately at a set interval?

Edward

Left C

Can't you still use them?

I used the 1 L mix (1000 mL) mix (divided by 2) but I only made up 500 mL. You may still be able to use your containers.

I have Lab containers that will hold from 50 mL to 1L and they work well.

There's always pop or water bottles that are available. If you have some, can you use them?

Left C

I guess that we all have been in a fog sometimes or maybe many times in our life.

Mr. Jimi has a song about being in a "fog." I hope that this brightens up your day a little bit. http://youtube.com/watch?v=cnFSaqFzSO8

Thinking about your discus tank; this may help: http://youtube.com/watch?v=8aUDVpHxw9c

LordSul

For example, for K2SO4, 1ml gives 0.6ppm to 10G, isnt that too low, that will make 4.2ppm per week for K?

Left C

The total daily dosing amount of K in the solution from KNO3, KH2PO4 and K2SO4 is ~ 1.33 to 1.41 ppm or over 9 ppm for the week.

This is discussed in this thread. It's a page or two back.

snickle

RJ,

I am still a newbie and learning. Hopefully Edward will chime in here and enlighten us, but I suspect the previous posters have it right.

RJSimoneaux

Thanks for the replies,

Good circulation would spread the ferts out. I was thinking the the lights would degrade the fert and before light would allow plants to absorb more for usage when photosynthesis starts.

Edward do you have specific reason for before lights and how much before do you recommend?