O.k., this is my first time with a Rena XP1 and I'm just sort of looking for some validation here.
It does not have a lot of room for more media (and frankly, the XP2 and XP3 would have been too much filtration for my 18 gal. (would have been like an ocean)).
I have from bottom to top:
black spongy thing (coarse) on the bottom,
Rena bio-stars next,
Bio-zorb (is this worthless?) on top of the stars
the fine white filter on top.
I chose this particular order, because that what my interpretation of the instructions and the pictures on the outside of the different media boxes suggest.
What do you all think?
It does not have a lot of room for more media (and frankly, the XP2 and XP3 would have been too much filtration for my 18 gal. (would have been like an ocean)).
I have from bottom to top:
black spongy thing (coarse) on the bottom,
Rena bio-stars next,
Bio-zorb (is this worthless?) on top of the stars
the fine white filter on top.
I chose this particular order, because that what my interpretation of the instructions and the pictures on the outside of the different media boxes suggest.
What do you all think?