trickle filter

I am getting back in the hobby. I have had several Fowlr tanks before my last being a 220 oceanic. Been about 5 or so years since I disassembled it. I have a 374 gallon acrylic tank that I am finalizing with the builder (envision acrylics) as well as a big 5’x18”x18” wet dry trickle filter with...