01-04-2012, 08:47 PM
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Originally Posted by djtleek
I used Top Fin's Water Conditioner when I filled my 10g aquarium for the first time. The directions said to use a full capful for each 10g of water, so I only needed one capful initially for my 10g aquarium.
My question is: If I want to top-off my aquarium with say, 4 cups of water, how much water conditioner should I use? I know 160 cups is 10 gallons, but its impossible to measure 1/80th of a full dose of water conditioner which is technically what the directions call for when doing the math traditionally.
Is there a standard rule of thumb for topping off water on such a small aquarium?
Also, I live in Wisconsin where we have water softener automatically added to our tap water. Is it OK to use this type of water when filling up my aquarium? Seems to me it would have too much salt in it since water softener is actually salt crystals added to the water.
Additionally, I know the water from our refrigerator is non-conditioned since its for drinking. Would it be better for me to use filtered water from the fridge?
A couple of your initial questions haven't been addressed, so I'll do so here.
Rather than topping up evaporated water, a partial water change is better. This should be done every week; set aside a day when you will usually be able to do this, say Saturday or Sunday morning; it is best done early in the day, about an hour after the tank light comes on, and this allows more time for the fish to settle down before night. And don't feed prior to the water change. Volume depends upon the tank size, fish species and numbers, and if there are live plants. But generally, 1/3 to 1/2 the tank volume is recommended. Unless the room or weather is very hot, there should not be much evaporation during the week.
As for your softener, which I am assuming is one in your house, this is hard to say; some softeners soften water by adding various salts, and the resulting "soft" water is worse than the original hard water for fish. Depends upon the fish species, some are OK some may not be. What water did you use for filling the tank initially? If you can get water from the water supply that does not go through your softener, it may work. You can find out the hardness of your water from the water supply people. Many now have a website.