Why folks don’t like adding nutrients

[sixty_reefer]

No. Sodium phosphate contains only sodium phosphate and perhaps a number of other inorganic impurities at low levels, such as potassium or chloride.

That said, someone somewhere might sell a mixture for some purpose. You have a link?

We were discussing it here

Can phosphates binding medias give a false sense of security

Thank you, would I need to dilute it? Depends on what you are trying to achieve.

www.reef2reef.com

 

[sixty_reefer]

Close. It is already nitrate.

That nitrate can be measured in many ways, like height in cm or inches. In this case it is nitrate ion or nitrate nitrogen.

Got it now thanks

Nitrate-nitrogen in groundwater

New Zealand's most comprehensive source of water quality, water quantity and air quality data.

www.lawa.org.nz

 

[HBtank]

I didn’t double check the math, but that’s the right process.

I doubt the decrease in AFR is enough to worry about the trace element loss. The calculation of needed trace elements is not a science, but guesswork since calcifying corals are not necessarily the main user and certainly not the only user of many trace elements in many tanks. Macroalgae, soft corals, anemones, sponges, etc all use trace elements and a vendor like TM is just providing an average consumption (I hope, anything else is even less useful).

Yeah I just figured it was a good starting point, will see if TM can advise on the amount of A-/K+ per ml of AFR. Seemed to be a good distribution when I did my last ICP, other than iodine, but that seems common. Will have to test key elements, particularly Mg, and adjust as needed.

 

[Randy Holmes-Farley]

I finally get to ask you a question that I’ve been meaning to ask for some time now.

I got hold of this fertiliser to grow algae and it works pretty well, it claims to be nitrogen, potassium, phosphorus and minerals

it’s one of two products that I can find that claims to be a blend of nitrogen and phosphorus, all others seem to contain nitrates or phosphates. I’m not sure if organic or inorganic all I know is that grows phytoplankton fairly fast. Hence my thought that algaes can use nitrogen forms to grow. Have I been mislead by a product? I

It does not contain elemental N or P. Just inorganic nitrate (and maybe ammonia) and phosphate, but mathematically quantified as if it were N and P.