Product description
Advanced Nutrients HammerHead 500 ml – PK 0-4-12 bloom booster for one or two tents
Two tents in flower at once, or one tent and a couple of runs a year? The 500 ml bottle keeps you supplied, and per litre it's clearly cheaper than the 250 ml.
How far 500 ml goes
At 2 ml/L you get about 250 L of nutrient solution. Running a 30 L reservoir? That's 60 ml per fill, so the bottle covers four fresh tanks with some left over.
What's inside
HammerHead is a liquid PK booster with an NPK of 0-4-12, a P:K ratio of 1:3 and no nitrogen. The potassium comes from potassium citrate, and pH Perfect technology means no extra pH adjusting when you run it with Advanced Nutrients base nutrients. It's made for flower weeks 3 to 7 in hydro, coco and soil.
In practice
Because HammerHead contains no nitrogen, it fits well with the second half of flower, when you want P and K rather than more leaf growth. Add it from week 3, keep going until week 7, and check EC every time you mix. Shake well before measuring, and stir the tank after adding it.
