The delivery method by the cheapest shipping fee for this product will be letter pack plus. Letter pack delivery is usually required for about 1 to 3 days. If you are in a hurry, please select a courier service. The letter pack has a tracking number and is a face -to -face delivery by sealing. Please note that there will be no damage compensation, no cash on delivery, and no time specification. In addition to calcium, strontium, and trace elements that are indispensable to the growth of calcy algae, we supply iodine that is easy to depletage in the aquarium.. It can also be used not only for lime algae, but also for breeding fish, coral, shrimp, and sea anemones.. [How to use] Add 1 cup (5cc) per sea per seawater once a day. Please do not use it twice a day or more. For adding, go to a place with strong water flow, such as in the filtration tank or near the discharge of the water flow pump.. Immediately after adding, the breeding water becomes slightly cloudy, but it becomes transparent after about 1 hour.. Manufacturer: KAMIHATA Kamihata Fish farm CARIBSEA Contents: Purpleup

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