I'm not exactly sure all of what you are asking, but I will describe how I prepare my RO water and see if that helps.Greggz, I am using 3 stage RO filtered water based on The GreenMachine guys formula (can't find link)
I mix it in bulk and then add 2X a week, but the KH doesn't seem stable.
I also tried autodosing with a 2 gal bucket and a powerhead to stir up, but it still sinks to the bottom and forms concrete block.
Can you please describe what you use to remineralize? Formula? Equipment? Means of Dosing?
Mine is actually a 6 stage. Here is a pic with the filters listed. The biggest difference is the Alkaline Remineralization filter. It's adds back in some minerals, which makes the drinking water taste better. Keep in mind I am on a well, so I want it well filtered for kitchen use.I was curious about your mention of a 7 stage RO. I have a micron filter, two carbon blocks and the RO membrane, so I guess that is 4 stages.
What are your other 3 stages?
Is it worthwhile since you also dose GH and KH?
Sounds like the other 3 stages are only a partial solution.
Let me explain about autodosing. I have an auto water change of about 15% a day, which completely eliminated BGA and the need for weekly WC.
I autodose ferts with peristaltic pumps, so except for monthly WC's to trim plants and clean the glass, its all automated.
But I can't seem to remember to manually dose GH and KH. So I took the dry mixtures and put in 2 gallon plastic jar, filled with water, added a powerhead to circulate and keep in suspension, then put a peristaltic pump on it. Worked fine for a while, but eventually the stuff falls out of suspension (and eventually wore out the power head) and turned into a cement block in the bottom.
Are you manually dosing or did you have some kind of auto system (the mystery 3 stages).
Yes the remineralization filter brings KH up just over a point. I then further dose to get to 3.5 KH.Here is a link regarding remineralization.
Basic answer is no.
A bit of carbonates is released to provide a pH that doesn't appear acidic.
But it's RO water, the tiniest amount of anything introduced will alter the water dramatically.
This being said the alkalinity of the water may rise a bit but Ca & Mg will still need to be added.
@Greggz have you ever tested TDS pre & post the remineralization cartridge?
Thanks Fab, I appreciate the kind words.Super beautiful Greg! Love your tank, and all the details you posted above. I also like the soundtrack in your video, very relaxing
It’s interesting how increasing B has been proven detrimental for your tank. I haven’t dosed B in my tank in months as you know, it I have plenty in tap though.
It is not surprise to me that reducing NPK helped as well, I also have reduced it of about 1/3 in the past month (micros included) and look at my AR now:
Thanks Fab, I appreciate the kind words.
Funny thing is I have never had much success with AR Mini. Might have to give it a try again sometime.
And while my dosing is lower, remember that is lower than what was a pretty rich number. So not lean by any means.
Thanks for the kind words and yes this is a fish tank first.Hey Greggz, Beautiful tank and thanks for posting a video. The biggest bow = all my fishes. The plant selection(contrasts) I think is great. Is that Red Cabomba or Furcata the second from back right side ?
For instance, Nickel is just 44 mg in the solution. That’s .044 Grams. So a half pound of Nickel Sulfate is 226,796 mg. So that bag is enough to make 5 thousand containers of the dosing solution. So it’s like enough for several lifetimes of keeping a planted tank.