Hi. I have been using a Vortex Diatomaceous Earth filter D1 filter for decades to secoandary filter my tank and as a power head for vacuuming my tank. I have finally run out of the Vortex branded DE in the 1 pound bag.
Since the company no longer exists, what other types of DE can I use in lieu of the OEM stuff.
Thanks!
Since the company no longer exists, what other types of DE can I use in lieu of the OEM stuff.
Thanks!