If you use potassium salts - be aware of that potassium can be toxic for fish in higher concentrations (above 550 mg/L at least after my own experiences). I have had two occasions with suspected mass death caused by potassium in concentrations above 550 mg/L - concentrations that have been in the aquarium for a prolonged period (not LC50/xx hours acute toxicity) I have hears about 1 more events like the two I have had. However - the corals was unaffected - in my cases they have never been as good as they was at these events and in that aquarium.
Very good to know about potassium....I do dose KNO3.....My last ICP I was around 400.....but I will keep an eye on it!
Yes do that - I can´t say that it is scientific proven that I´m right but my experiences make me to be careful with the K concentrations. I´m around 430 mg/L in K - that make me to change to NaNO3 instead. I use the same recipe (40 g diluted up to 500 g with RO water) it is not the exact thing but it is close enough for me (1 ml of this solution rise 100 l with 0.5 mg/L - around :p ) My experiences is also that if you have a fast growing Chaeto refugium - K is consumed. It was what happens between 2016 and 2018 in my aquarium. I did not dose any KNO3 at that time. Start in the spring of 2018 with KNO3 but use NaNO3 when K koncentrations rise
The diy dosing archive linked at the top of the Chem page gives recipes;
I am little bit stupid for chemistry, if you can advice me, so If you dissolve 10 grams in 1 L, then it is 10 mg/mL NaF and it takes 22 mL of that solution to boost 100 L by 1 mg/L F.
It’s in the diy chemistry thread. :)
