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Good morning to all, I have recently decided to upgrade my biofilter during the colder months to have more filtration for the coming spring. Does anyone have a large 2-3 stage prefabbed biofilter for a 3k-4k pond laying around? I am going to incorporate my existing bio with an additional one. Me and my wife are anticipating a growth spurt this spring. If we do this now we won't be crunched trying to mainline the filter addition when the weather gets warm.
Let me know how much $ you want for it.
Let me know how much $ you want for it.