I’m not sure why diatom filters became a thing of the past!!
I bought an internal canister filter to battle a severe algae bloom (alien water) and it didn’t do much. So I cleaned the filter, and “charged” it with diatomaceous earth by letting it run in a bucket with the de until the water was clear. Replaced it yesterday morning and my water is completely clear today! Nothing else had worked.
This is AMAZING!! Took 24 hours for the de filter to clear the water up completely. I had been battling green water for 2 weeks prior to this discovery!
Thanks to Cory for the tip on diatom filter!