bought a used fluval 406 for $70, what's the best way to load it for bio filter?
I'm going to use this and an ac110 on my 120 gal, load double sponges in the ac110, what should I load the fluval with?
I'm going to use this and an ac110 on my 120 gal, load double sponges in the ac110, what should I load the fluval with?