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Guanokalong is a company with headquarters in the Dutch town of Aalten which specializes in the distribution of special fertilizer. The so-called "bat guano" is a fertilizer that is composed of natural ingredients derived from the excrement of bats. What makes this product so special is that bats feed exclusively on ripe fruits and insects of the rainforest, which means that the resulting plant fertilizer is rich in special microelements and enzymes, thus ensuring the best possible performance. In its online store, Guanokalong also offers other types of fertilizers tailored to specific areas of application and growth phases of plants.