Anyone know if pvc
is ok in aquariums? I wanted make the filter intake have a longer column covered in sponge so it draws water from top, middle and bottom. Also I have a lump of bituminous coal I picked up from a surface mine here in Arizona a few years ago and I'm wondering if I can put that in the tank. It's unprocessed raw coal. I cant find info on this so I'll likely not include it.
Are there any plants that will grow on the hanging root but will hang/grow downward into the water?
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