If you find your filter is producing too strong a current, the best advice is to take the spray bar and drill the holes wider. Note: pay attention to the hMax rating, this is the total height that the filter can return water to (generally 1.5m, or 5ft) With gravity in mind, the canister must be located below the aquarium to ensure optimum siphon effects. The filter relies on gravity to feed the water to the canister, contrary to popular belief, the pump/impeller does not suck water out of the tank persay, it only forces it back up the tube. Splashing does not help, and can upset some of the more peaceful species. Note: it is only necessary to have the surface moving/rippling to conduct gas exchange. I position it there so that with evaporation, I don't get splashing, maintaining a more silent tank. There is no need to have it 'splashing' water back. The spray bar is positioned about 5cm (2") below the water surface, and is angled toward the surface, just enough to create movement on the surface. Mine is positioned across the back of the aquarium, and sprays water from the back to the front. I would also consider putting some cut up, brand new, never seen detergent panty hose over the strainer to stop sand from entering. If I had a sand substrate, I would raise this to 2.5/3cm (1-1.5") above the sand to reduce the chances of sand entering the filter and damaging it. I position mine with the bottom of the strainer about 1.5cm (0.5"-0.75") above the substrate. Note: the intake tube connects to the bottom connection on the canister So my philosophy on water filtration is as follows: Water enters the tank from the top and travels around the aquarium, then gets sucked back into the filter from the bottom, therefore: I've had a search of the forums, and there are similar topics, but I figured with the popularity of these filters, I'd share my tips and tricks of using one ( 2213, but applies to all Classic filters) and the things I've learned.
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January 2023
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