Typically its not of issue if it dries out. The beads do shrink and can fall through a fine mesh bag. Re-wet the resin and it will expand and will hold well again in the bag. As long as the dry resin has not been exposed to potentially hazardous compounds while being dry it should be okay to use again in the aquarium. If there is doubt don't use it. As far as cracked or broken beads, this does occur on a minimal level but most of these would rinse away upon re-weting. So, really not a catastrophy when it dries but it is best to store moist and away from anything you would not want to put in your tank. |