I made a wet dry with superb bio load and great filtration.
It cost the tank, some PVC
, some Rubbermaid baskets and a Home Depot pump.
You could do it with a built in overflow or buy one.
If you'd like details, just let me know.
it's super easy, fun and highly effective!
The cat litter and dog food containers fit perfectly in the tank.
The are filled with a total of about 12 gallons of bio balls, blue floss in the baskets.
There is also 100 micron media in one basket.