Crystal Burst (0-15-15) + B1 One of the most potent liquid PK Boosts on the market. 50% stronger than the most popular brands on the market yet it costs the same! PLUS a healthy dose of Vitamin B1 to help relieve stress caused by high performance bloom regimens. Induces flowering and stimulates resinous oil and fragrance production in many flowers and medicinal herbs. Works well with all popular nutrient lines. This product is also available in 15 gallon, 30 gallon, and 55 gallon drums.