(08-24-2012, 11:41 AM)dashboardc33 Wrote: Although I am not an expert on fish, I wouldn't use rainwater in an aquarium. Rainwater has all sorts of pollution in it when it falls from the clouds. If she is concerned with BPA leaching into the water from the plastic of the distilled water, perhaps she could filter her tap water. Tap water isn't the best for fish, but maybe it is better after it is filtered.
Sorry, your comment about tap water is totally wrong.
Tap water is perfectly fine for aquarium use.
Tap water is cleaner than river and lake water. It does not need to be filtered. The only problem with tap water is the added chlorine during processing at the water plants can actually kill the fish and beneficial bacteria in the filter system. It is easy to fix. All we need is to use an aquarium water conditioner to get rid of chlorine in the tap water and then it's all set. A few drops in a bucket of tap water can make it ready for fish.
The only other rare case about problematic tap water is when it has excessive nitrate or ammonia in it, which doesn't happen often so I call it "rare case". Such problems can't be solved by "filtering". Since nitrate and ammonia are dissolved in the water.
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