I just finished(i think) building a 4 tank system, I've filled these things up and drained and dried many times over the past month. I tried using an old HOB filter to mechanically filter the water(some small plastic, acrilic, silicone shavings) but sadly it seems the filter did that but left some scummy substance in the tanks, bacterial growth and what not........ and theres dust and what not aswell that was never removed.
so how should i clean these tanks? wet paper towels?
or do i even need to clean it?
so how should i clean these tanks? wet paper towels?
or do i even need to clean it?