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Fish can be some of the easiest animals to take care of. You buy a tank, throw a bit of water in, add fish and feed. Pretty simple, isn’t it? Of course, there are a few things that make it a little more complicated. You want fish that can get along together in the same tank, you need to assure you’re feeding the pretty little floaties the proper food and, most importantly, you need to make sure that the water is perfect for their climate. Water can come from several sources, including good old-fashioned tap water.
There are many people that believe tap water is horrible and they would never think of drinking it let alone putting their fish in it. After all, tap water is full of a variety of chemicals and things that are harmful to humans and they are certainly harmful to fish, right? Actually, that is not true at all.
There are some basics that you should know when are setting up a freshwater tropical fish tank. First, the water temperature should be between 72 and 82ºF. The pH of the water should be between 6.5 and 7.5. The nitrates and ammonia should be at zero with nitrate <50 ppm. It's best that the water's hardness is between 4 and 12GH. Each one of these parameters has to be balanced with each other. When tap water is used in an aquarium some sort of conditioner has to be added in order to help you make this goal. If your tap water comes from a well it might already be balanced, but the water should always be checked before adding fish to the tank.
You shouldn’t have any trouble finding these conditioners at well stocked pet or fish supply store. The fast acting ones can be added to the water as you are adding your fish to the tank. These conditioners are perfectly safe for the fish. It won’t make them ill or cause them harm, either physically or mentally. Make sure that any product you choose contains a chlorine remover or dechlorinator because it’s the chlorine in the tap water that causes most of the problems. Phosphates, pesticides, and copper are also commonly found in tap water. These substances will have to be countered with some kind of balancing agent that are typically found at any store and are sold in a tablet form. If any of these substances are present in the water in levels that are too high, stress or other ailments can develop. In most cases, tap water is reasonably balanced and is fine for your fish.
There are other sources for aquarium water other than the tap, including distilled water, rainwater, and reverse osmosis water. The main problem with collecting rainwater is the risk of also collecting pollutants and debris. It is an especially bad idea in areas that frequently experience acid rain. While using RO water might sound like a good idea, it’s really not. You see, drinking purified water is great for humans, but rather bad for fish. You would have to remineralize and oxygenate the water in order to maintain the right chemical and organic balance.
Feed the floaties, keep their home comfy cozy and fill it with well balanced water and there shouldn’t be any issues whatsoever when it comes to their health. Remember for fish: tap water good, distilled bad.
About the author:
April Levine is an aquarist with years of experience in keeping tropical fish. She maintains many fish tanks full of the rarest tropical fish in the world.