| Brand | DFW Aquarium |
|---|---|
| UPC | 080531460016 |
Check the listing for details. Fritz Mardel Maracyn - 10 pk. Condition: New. Listed at 16.99 USD. Maracyn® may be used concurrently with Coppersafe®, Maracyn® Two or Maracyn® Oxy. Maracyn® will not harm invertebrates. About Mardel Maracyn®. It was developed for complete but gradual dissolution in water.