so there is no reason for the 3:1 "rule" for Ca:Mg? As long there is enough of each? Alright.
Yes, I have yet to see any credible evidence otherwise, Dr Bloom is the foremost mineral nutrition researcher, along with the oft cited Epstein co wrote a well referenced text on Mineral nutrition of Higher plants. He's here at UC Davis, had him for a class. I don't care what some cheese ball claims on line, I'll stick with his advice, as well as my own specific method to testing where we attempt to falsify/test our hypothesis, not just assume some crap as "truth". Do not do that type of thinking, they are more often than not, wrong. Some go further even when shown they cannot be right in their hypothesis, insisting and defending their ego's, rather than saying and fessing they where wrong. It's not personal, it's just how we learn, we make mistakes and learn from them. I make lots. But I keep going and learn from each mistake. You do not dig your heels in and keep saying the earth is flat
Yes, I use KNO3 and KH2PO4.
I will try to get Co2 a bit higher. And will dose even more TE's. Isn't there the danger of too much, Fe for example? I hear so often about toxicity and blocking (Fe/Mn) but it's always very vague and a bit of scaremongering around the aquaristic forums. How much is too much and why? Why the 0,1 mg/l rule for iron?
Thank you in advance for any enlightenment!
There's no such "rule" except by the Know Nothings or the Parrots that repeat what someone else said.
I have quite a few studies that some aquatic plants like Hydrilla increase their rates of growth up to 6ppm of Fe, I add about .5ppm or so typically, I've added 10ppm without issues as well.
These are hard numbers, data etc. Not just some baloney about blocking, or stunting, or toxicity.
The fish where Cardinals, Rummy nose, soft water Apistos, L no# Plecos, Amano shrimps etc.....all so called sensitive species.
I was at 20-30 X the suggested amounts with no adverse effects on plants or critters.
No algae etc.
Water was yellow, pretty yellow for that matter, but otherwise, no issues after 1-2 weeks.
So if this stuff occurs, why did I not see "bad effects", that the Know Nothings claim? It's their hypothesis yet they do not test these claims.........nor have direct experience with the very advice that they give?
And I or anyone is suppose to think they have credibility?
Credibility is earned and demonstrated, not "given".
Fe=Mn issues do occur, but not in these systems at these low concentrations.
That's where the issues start, folks fuse this stuff and mix it up.
They are chasing 2 dozen possible things, cannot isolate anything, nor test, so they guess and leave folks with 101 speculations/myths.
If you do test, then you can see what is what and narrow the choices down.
But few bother. They are not really interested in that, just some combo that works for them for whatever reason.
They do not care about why or being correct as much.
That's just how the hobby/human nature is.
The way to beat that is to show examples where those treatments are being done, yet no adverse affects are occurring and the tank looks good etc.
Then their theories no longer hold and make sense.