It cost about $100.00 to build, including pump.
I use poyster batting for quilts, $4 bucks for a 6 month supply.
This is the back side of the tank,
The bio balls are a redundancy, k1 would work best, the bio balls are fluidized with air/ water.
The media is in case of power outage, as a fluidized sand bed filter can crash if it is motionless.
The basic idea is a baffle with holes drilled through it. A large filter floss filter slides into it.
For mechanical filtration, that's quick to change.
Alternatively the pump side of the baffle. Could be filled with pumice, ceramic, and operated similar to a undergravel filter, with the sump pump discharged into a couple of filter socks suspended above the aquarium. Under a canopy, to save aquarium space.
My 75 is specifically designed for use with a denitrator, that needs a defractionator. The sandfilter removes disolved oxygen for the denitrator. Kind of complicated, but easy compared saltwater reef.
I use poyster batting for quilts, $4 bucks for a 6 month supply.
This is the back side of the tank,
The bio balls are a redundancy, k1 would work best, the bio balls are fluidized with air/ water.
The media is in case of power outage, as a fluidized sand bed filter can crash if it is motionless.
The basic idea is a baffle with holes drilled through it. A large filter floss filter slides into it.
For mechanical filtration, that's quick to change.
Alternatively the pump side of the baffle. Could be filled with pumice, ceramic, and operated similar to a undergravel filter, with the sump pump discharged into a couple of filter socks suspended above the aquarium. Under a canopy, to save aquarium space.
My 75 is specifically designed for use with a denitrator, that needs a defractionator. The sandfilter removes disolved oxygen for the denitrator. Kind of complicated, but easy compared saltwater reef.