Dosing K

[JDogg]

Is there an easy way to calculate how many ppm of K i am adding to my tank, OR is there a test for ppm K?

right now i am adding one capful of Flourish K to my tank every other day.

 

[rich311k]

There is no hobby grade kit to test for K, but the upside is it is almost impossible to overdose.

 

[JDogg]

There is no hobby grade kit to test for K, but the upside is it is almost impossible to overdose.

I am not so concerned about overdosing, I want to make sure I can dosing enough for my swords, but at the same time, i do not want to be wasting it. It would be nice to know that my plants are using most of it and i am not just dumping most of it out with my pwc. :?

 

[rich311k]

Best way is to tell by how your plants are doing. If they are growing and the leaves are not browing at the edges or getting holes in them, then you are dosing enough.

 

[Lonewolfblue]

Flourish Potassium is 2ppm per capful for a 60G tank. So for a 30G, it's 4ppm. And I believe you want to dose 10ppm twice a week. Is this the 28G? I think 3 capfuls twice a week is good. If I'm incorrect, will someone jump in? Thanks.....

 

[JDogg]

Is this the 28G?

yeap

 

[malkore]

http://www.csd.net/~cgadd/aqua/art_plant_dosage_calc.htm - if you are using dry potassium ferts.

you can dose in excess of 100ppm potassium without any problems. no realy need to exceed 15-20ppm at a time though.