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I now have a question regarding my filter maintenance.
I have not touched it yet because I didn't want to mess up the cycle.
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I have read a lot of posts indicating that folks think the bio-filter (colonies of the beneficial bacteria) exist only in the filter. I guess if I wanted to sell you expensive special ceramic rings, expensive specially disigned and tested at our zillion dollar laboratory complex, had the packaging designed by very expensive advertising and marketing firms, then I would want you to believe that the bacteria colonies existed only where my product was (in the filter).
I keep a handful or ceramic rings in my canister filter because I know that the colony is a little more efficient if there is water movement. I also keep a good water circulation going in my tank and know that I have colonies of beneficial bacteria
everywhere in my tank. These guys (the nitrifying bacteria) have been doing very well for millions of years without the benefit of slick marketing and product.
This is the way I stack my Canister (Rena 3). It has three baskets each about 6 x 6 x 4 inches. Water flow is bottom to top. Bottom basket.. Coarse sponge two layers, a finer sponge two layers. Middle basket..polyester fiber topped with a filter pad. Top basket, handful of ceramic rings. I rinse out the sponges in tap water and toss the pads and polyester fiber about every three weeks. If the ceramic rings need it I swish them in the filter water.
Regards,
Jay