koiguyoz
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Oct 18, 2004, 4:27 PM
Post #2 of 5
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Re: [koistudent] BIOMEDIA IDEA
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 You're going to either drink alot of drinks at McDonalds, or be looked at suspiciously  by the staff members.
Seriously, I would stick back to using lava rocks, and with a relatively low fish load, run the entire media unfiltered by any sponges, directly feeding them straight into the submersible filter box you have.
In any case, I believe the smooth surface of the straws may not hold the bacteria in place without the force of the running water sheering the biobacteria off.
For the last few days, I've experimented with boosting my biological filtration capacity in my overstocked pond (until the koi move into the other pond which is 8 times larger than this one I have) with a submerged filter box, filled only with lava rocks, both small and larger rocks, and a 1500 litre per hour pump, and amazingly, without cleaning the filter box at all, the green water is now dead, and it appears to be going back to clear :D. Mind you, this pond is also supplemented by another 2000 litre per hour submersible solids handling pump, taking all solids into a trickle tower housing 80kgs of large lava rocks, with 300 bioballs, and 2 square metres of quilt batting :p.
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