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Old 09-15-2003, 04:15 PM   #1
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Raising water hardness

I'm planning to start a freshwater tank (somewhere around 160 liters/ 40 gallons), for mainly live bearers (platy). I found out some information about the tap water quality in my town, and the pH seems ideal, 7,9, but the total hardness is very low, about 2 dH. My question is, what would be the best way of raising the hardness level to at least moderate without messing up the pH level? I've read that you shouldn't pay too much attention to water hardness when just starting out, but I've had a tank some years ago, and have a decent level of experience already. However, I've never quite figured out how to alter the water quality and make it stable, too. I'd like to provide the best possible environment for my fish. The last time I got frustrated with the problems I ran into after starting out with less than ideal conditions.
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Old 09-18-2003, 08:53 AM   #2
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Do you have access to any RO water?
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Old 09-18-2003, 09:35 AM   #3
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No I don't. However, I already got some advice on the hardness issue elsewhere, so I think I'm set, and know what to do now Thanks, anyway (I'm going to put some crushed coral in my filter, and if that doesn't work, I'll probably just add sodium bicarbonate in the water. However, people with more experience than me said that the crushed coral should work fine )
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Old 09-20-2003, 04:59 AM   #4
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Remember it is not advisible to increase the hardness more then 1 dKh per day.
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Old 09-21-2003, 01:59 PM   #5
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Hmm, the speed might be a bit hard to control with the crushed coral, tho. It's supposed to change fairly slowly that way, tho, anyway. However, I'm planning to raise the hardness to the maintenance level before introducing the fish.
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Old 09-21-2003, 03:00 PM   #6
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You should be in fine shape then going that route; my only suggestion is to add the crushed coral in stages and give it a little time between adding, so you know how much you will need without raising levels to high and having to play with water changes to get to your goal.
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Old 09-21-2003, 03:55 PM   #7
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Thank you, everyone, for your advice I will add the crushed coral a bit at a time, and see how it goes
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