The glass bulb will dry out if not in water, and in RO/DI for a long time, ions will diffuse out of it. Diluted tank water is OK for storage, as is pH buffer.
<a href=showthread.php?s=&postid=6503909#post6503909 target=_blank>Originally posted</a> by Randy Holmes-Farley
Please PM me the brand of carbon that you was using.
It was not an aquarium brand, so no need to worry about it.![]()