It can be applied as a foliar feed or added directly inside Sarracenia pitchers. Quantity: You are buying one sachet of Maxsea 16-16-16 plant food (third pic) which can be added to one US gallon (approx 3.8 litres) of rainwater - NOT the tub!
eBay
MAXSEA 's formula unites the power of nature and technology, blending top-quality natural seaweed, crucial secondary and micronutrients, and exceptionally pure plant nutrients. The best Venus Fly Trap plant fertilizer!
eBay