opinions on amoninia spike

[jmaneyapanda]

Smallblock;668966 wrote: No ph swing, other than the slight drop at night. Elos test for nh3 and nh4 together

Edit: says nh 3/4

That's why. That's total nitrogen and includes harmless NH4. You'll need to convert based on pH and temp.

 

[smallblock]

ok lemme do some research and try to find the formula unless you know it off the top of your head.

 

[jmaneyapanda]

Smallblock;669025 wrote: ok lemme do some research and try to find the formula unless you know it off the top of your head.

It's a chart. I have it at work. It took me 88 years to find.

 

[smallblock]

man your old, lol thanks I'll try and find it.

 

[jmaneyapanda]

Smallblock;669032 wrote: man your old, lol thanks I'll try and find it.

Granted, I needed to find what I was looking for before finding it itself.

Basically, it's a chart of percentage of total nitrogen ammonia that is ionic ammonia at different temps and pHs. I can tell you this, 0.3 will be a very small amount of toxic ammonia. A couple percent typically.

 

[cr500_af]

Which begs the question, why include the harmless NH4 in the test at all? Cheaper and easier to manufacture I assume?