What water treatments do i need for aquarium fish?


Hi I've bought a 5 foot Fish tank with 6 large Goldfish in it off eBay about 2 weeks, ive only ever had one tiny goldfish before who ive successfully put into the tank, but with him ive never treated the water, he was just in an old fashioned bowl (which im told now is a big fishkeeping faux pas!!)

Obviously as its been two weeks its time for a partial water exchange but ive been told to treat my tap water and test it, im pretty dumb and have no idea what to use or what im testing for can anyone tell me more, and where i can buy some treatments (preferably lower end of the budget though i have a teensy budget)

Wow, there are some pretty windy opinions here. This is what I think: You need to purchase a siphon. Have the store manager give you a lesson on how to use it, or IM/email me and I'll walk you through it. Use the siphon to vacuum out all the crap out of the gravel. It sounds like your tank is already established. Were the goldfish living in this same tank when you purchased the tank or are the fish new? If the tank has only been running since you purchased it, then your tank is still cycling. You might want to purchase a master test kit. This will allow you to monitor ammonia, nitrite, and nitrate. Keeping yourself informed of your tank's water qualtiy will help prevent any major problems down the road. When it comes time to fill your tank back up, use a dechlorinator. Most are in liquid form. Follow the instructions on the bottle. You can also leave the water sitting out for the chlorine to evaporate, but if your local water treatment plant uses chloramine, you will have to wait much longer. Magicman taught me that chloramines have a half life of about 72 hrs, at 7.5pH and 80 degrees. This means that if you set your water out to age for 24 hrs and the city puts chloramines in your water, it will NOT be safe to add to the tank without water conditioner. The cheapest way to dechlorinate your tank is to purchase Sodium Thiosulfate crystals. This is the main ingredient of dechlorinator, and for a few dollars, you can dechlorinate thousands of gallons. It is pretty hard to find, but you could probably order some off the internet. Email me if you have any questions.

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