What do I need to know about fishes and aquariums? | PetHot.com
You need at least a 30-gallon aquarium for one or two goldfish, and a bigger one for three or more goldfish. Goldfish grow to be about a foot long and can live for over 20 years, but many people don’t realize that because they have only seen baby goldfish that died before having a chance to get big, most often due to being overcrowded. For every extra goldfish, add 10gallons (ie. 2 goldfish need 25gallons etc. Here’s a total list of what you’ll need Get some good books on aquarium-keeping, and read them carefully before you buy. Goldfish are large fish with high oxygen requirements and a tendency to foul their own water, so they need large tanks. Change water regularly, ~once a month, add zyme and conditioner ~once a month, a little more when you add a new fish. You’ll need water purifier to remove the chlorine and other harmful chemicals your local water plant puts in. I recommend the Seachem Prime brand. There are other aquarium kits and starter kits you can buy too. Make sure you do weekly water changes of about 25% water to help keep it clean. The most important thing to know about goldfish is that the small tanks or bowls where many people keep them are death traps. Other than that, you’ll just need goldfish food (Hikari brand is good) and decorations. They like cooler water, so you don’t need a heater. If you want goldfish, I’d start with a 15 gallon tank for just 1. I have a biorb, a great tank for goldish (though a lot of people don’t like them).
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