Was thinking of changing out the bio balls in my wet dry filter with marine pure 1.5 inch spheres. Some of the spheres would remain submerged and some would remain above the water line. Is this a better route to take?
I did not know anyone was still using bioballs or similar media these days. If I remember correctly, when using media in a trickle bed, it is not submerged because the goal is to maximize surface-air contact. Not the end of the world if it is.
In hear that there is some concern with bioball use. You will no doubt hear from someone on this forum about this.