Published at Saturday, March 03rd, 2018 - 06:30:41 AM. Aquarium Equipment. By Dorothy Wulan.
Canister filters: Canister filters are very popular with medium sized to larger aquariums. These are external filters that pump water from the tank through a hose and into the canister filter, where it is forced through mechanical, chemical, and biological filter media and then back into the tank through another hose. Canister filters are so popular because of their ability to process large volumes of water through a lot of media. This is important for tanks with a lot of fish that produce a lot of waste. Using a canister filter will help polish your water until its crystal clear. One downside to canister filters is that they can be slightly harder to clean and begin to lose flow as they get clogged until they are cleaned out again. Because of this, if you are lazy about keeping up with regular filter maintenance, trapped debris and detritus can lead to an increase in nitrates. For this reason the canister filter has received the nick name "nitrate factory" among fellow aquarists.
Reverse Osmosis filter: A reverse osmosis filter is a unit that can easily be attached to a home faucet which removes total dissolved solids from your tap water by forcing it through a RO membrane. There is also an optional additional stage to remove nearly all total dissolved solids from your tap water called de-ionization. An RO/DI filter will provide you with the purest water free of all harmful contaminants. If you choose to use RO/DI water for your aquarium, be sure to add minerals back into the water that were removed during the filtering process. Some minerals are needed to increase the GH/KH and pH to stable levels. A product I use is called equilibrium by the aquarium company Seachem laboratories. This product is designed specifically for restoring RO water with necessary minerals.
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