My DIY filters

[Lyferxb9s]

Here’s one for my pond and one for my 125 double stack
K1 media galore and adding more

 

[Lyferxb9s]

Ok 44 gallons wasn't enough and the lid would drip too damn much

 

[Water Keeper]

Hello. Like the tanks. I've got a 300 gallon tank that has no mechanical filtration, only large,frequent water changes. How does this DIY filter work?

Water Keeper