Brightwell AquaticsFlorin K - Concentrated Potassium Source For All Planted Aquariums, 250 ml

I am still having pin-holes in my plants, but less as the plants grow new leaves.

My hygrophila in my aquarium needed potassium so this was a good deal for the money

Is what it is. Good product.

Thus far this product is the best I've used for my plants. They've taken off and in just a month ive seen a big change.