Potassium Dosing

[Randy Holmes-Farley Verified Community Expert]

Thanks for your learned input Randy :)

I haven't read about zeolites binding potassium, but I'm sure it's possible. There was talk about the zeolites adding iron to the water and using this to bind phosphates.

I don't employ the ZeoVit system anymore, however, I still "lose" an appreciable amount of K+/fortnight and have to dose my tank.

I put this down to the bacteria and skimming.

I agree that seems likely.

You're welcome and Happy Reefing. :)

 

[Paul J]

I have just started testing Potassium and the results were lower than 325mg/l. This is were the figures start. The kits used is Colombo. I dosed 2ml on day one. Next day read no change. Dosed 3ml on day two (today) I shall keep dozing until I each the 400ml/l mark.
Anyone else using this test kit?

 

[Syntax1235]

@randyHolmes-farley

My reef tank seems to consume a crazy amount of potassium and Strontium. I'm currently at 290 and I've been dosing 50ml of 4x strength Brightwell Potassium powder suppliment. I can't seem to keep up with demand, my reef is 80% acropora, 180 gallon tank. I'm looking at the eherb supplement... Do you recommend the powder? How do you dose it? I have a doser.

 

[Randy Holmes-Farley Verified Community Expert]

@randyHolmes-farley

My reef tank seems to consume a crazy amount of potassium and Strontium. I'm currently at 290 and I've been dosing 50ml of 4x strength Brightwell Potassium powder suppliment. I can't seem to keep up with demand, my reef is 80% acropora, 180 gallon tank. I'm looking at the eherb supplement... Do you recommend the powder? How do you dose it? I have a doser.

Yes, iherb potassium chloride is fine.

how are you doing calcium and alkalinity? That method might be reducing potassium and strontium, independent of any consumption..

 

[Syntax1235]

Yes, iherb potassium chloride is fine.

how are you doing calcium and alkalinity? That method might be reducing potassium and strontium, independent of any consumption..

I'm using Triton, been using the method for about a year. I'm testing using Salifert, Triton ISP confirms my low readings.

 

[Syntax1235]

Ok, so doing some quick math... 600 grams of eherbs Potassium will run about $12.50... the equivalent of Britewell will be about $17.00. Whether the eherb is a better value depends on the concentration... Can you shed any light on this Randy?

 

[Randy Holmes-Farley Verified Community Expert]

100% solid potassium chloride is 8 oz for $4.78 (got to figure shipping too; see below). No product can be more potent, and any solid product is about the same. Liquid producs will be much less potent.

https://www.iherb.com/pr/Now-Foods-Potassium-Chloride-Powder-8-oz-227-g/777

 

[Syntax1235]

How is this mixed? Ratio of product to volume of water and how much will that strength raise levels?

 

[Randy Holmes-Farley Verified Community Expert]

The volume you dissolve it in doesn't really matter, and I do not think it needs to be dosed slowly the way this calculator suggests, but here's a calculator:

http://www.ultimatereef.net/pages/pot_supplement/

 

[TX_Punisher]

Good info here. Thanks