Re:[F][P] DIY Media for a wet/dry
Steven Dimitri wrote:
> (stevendi at ozemail_com.au )
>I have nearly completed my DIY wet/dry filter and am now deciding on
>what types of media to use.
>I recently saw some 'practice golf balls'.
>they are the same size as normal golf balls but are hollow and have
>holes all over them. the holes are about 5mm in diameter.
>they are also made of a white plastic.
>would these work as media?
Never having run a wet/dry, my advice should be taken for what it's worth.
:-) [i.e., it's free]
I would think the ratio of volume to surface area would be very high with
practice golf balls, while a wet/dry needs a large *surface area*. The best
suggestion I have heard is to use lava rock. The kind used in gas barbeque
grills (at least in the US) is almost perfect -- small lumps of extremely
porous, reasonably inert rock.
Almost any rock can be cleaned with a little pool acid and then chlorine
bleach to remove soluble salts and organic contamination. [NOT at the same
time, of course] Plastic may have some very nasty plasticizers in it, so I
am cautious about using most of them in my tanks.
Wright Huntley (408) 248-5905 Santa Clara, CA USA huntley at ix_netcom.com