Potassium Q

[authentic]

I recently started testing potassium with a salifert test kit.testing daily.140 gal system ,dosing 10ml ca and 10ml alk daily.potassium reads 370,adding 25 ml red sea coral colors B potassium/ Boron, (using ultimate reef potassium calculator) after 24-48 hours it's back to 370,also doing 1 gal automatic water changes daily with red sea salt.mainly sps system.is it likely that my tank is using this much potassium?if so should I dose regularly?is there any other potassium supplement that is recommended?tank is doing great,just looking to keep it going strong

 

[Cory]

I use brightwell aquatics potassion p. Its balanced. When i dose mine according to the directions it goes exactly where it supposed to be. Ex 320ppm potassium and i dose for example 25 grams to bring it to 420ppm potassium.

Is your product a liquid or powder?

 

[authentic]

Liquid,I have a bottle of brightwell that has a mft date of 2012,I thought it might be too old,when I went to my lfs they had a bottle on the shelf also dated 2012,is that product still being made?
What's everyone else using