Not for Sale. Reference Only.

Duracell Batteries
Monster Bloom by Grotek | Bloom Maximizer | 500 Grams
Additional Media

Monster Bloom - 500 g

Bloom Stimulator - Plant Nutrient Powder - (0-50-30) NPK Ratio - Grotek GTMB500


Grotek Monster Bloom (NPK Ratio 0-50-30) 500-gram hydroponic plant nutrient functions as a bloom and fruit stimulator during the middle stages of flower development. Combining a high concentration of phosphorus and potassium, Monster Bloom helps encourage blooming and stimulates plant metabolism, improving bloom and fruit quality while helping increase starch production within the plant. Monster Bloom is highly concentrated and should be phased out before the last 2 weeks of flowering.


Stock Code:  GROW-GTMB500
Part No.:  GTMB500
N-P-K Ratio:  0-50-30
Case Quantity:  6
Brand:  Grotek
UPC:  670829812148
Weight:  500 g

Return Policy

Grow Lighting & Hydroponics Return Policy

Grow Lights, Hydroponic supplies, special orders, and non-stock items are sold as "ALL SALES FINAL, no returns accepted". All fixtures are considered Special Order and are non-returnable. Please allow an account manager to assist you in this kind of purchase in order to guarantee that you are receiving the correct product.

Some grow lights and accessories have their respective factory warranties stated on our website. will assist its customers with these factory warranties in the following manner:

If a product is declared defective and is under warranty; the customer is asked to contact customer service or their account manager and ask for a return merchandise authorization. (RMA) With the RMA, our customer may return the declared defective product at the customer's expense, for factory testing. When the factory tells that the product is defective and not a product that has been improperly installed, we can credit our customer for the product and we will also credit the original shipping costs of that original purchase. If a replacement is needed, it must be ordered and paid for as if it were a new order. (A credit for the defective may take from 2-4 weeks to be declared acceptable under warranty.) Any and all remedies concerning Hydroponics Supply purchases will follow guidelines as set forth here. Other products are not returnable under circumstances outside those described above.

All of the products sold by are first quality products. All are factory tested and ready for customer application.

WARNING: Non- Plug in Ballast wiring and installation procedures are very complicated and should be attempted by a licensed electrician only. Ballast installation poses serious risks of electric shock which can lead to injury or death.

Shipping or Website Errors

Should the customer receive product not expressly ordered either by our shipping error or incorrect website information, the product will be picked up by our shipper and replacements shipped at no additional charge.

Customer Reviews