Problems with hardening water
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Problems with hardening water

This is a discussion on Problems with hardening water within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I used to harden my goldfish tank with a bag of crushed coral in the filter. I had a great system that took me ...

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Problems with hardening water
Old 08-27-2012, 06:54 PM   #1
 
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Problems with hardening water

I used to harden my goldfish tank with a bag of crushed coral in the filter. I had a great system that took me weeks to perfect, and it worked just how I wanted it to. I went away on vacation a few weeks ago and had someone else do my water changes. They didn't follow directions and emptied my bag of crushed coral to refill it with new coral. Now I haven't been able to get my tank back to where it was. I don't know what I did so right or am doing so wrong, so I'm going to change my methods. I'd like to try a substrate of crushed coral sand.

What sand should I use? I see a bunch of marine sands out there, but I'm not sure which ones will actually raise the GH, KH, and pH. I'd also like to find a soft sand as these are goldfish and spend a lot of time sifting through it.
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Old 08-27-2012, 07:02 PM   #2
 
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oolite sand is a soft fine sand made of the same material as your coral- calcium carbonate.
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Old 08-28-2012, 12:55 PM   #3
 
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CarribSea make a couple of sands from crushed coral and aragonite (this provides the calcium and magnesium, both are important). Some fish stores sell this type of sand in bulk.
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Old 08-28-2012, 02:30 PM   #4
 
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I wouldn't need too much as I'm only going to a put a 2" sand bed. But that's still a lot of sand as my tank is 55 gallons. Maybe it's time to make a trip...

I'm seeing a lot of different sands. I'm guessing that Caribsea's Arag-alive has aragonite and crushed coral.

Are any of these sands what I'm looking for?

1)
Amazon.com: Aragamax Sugar Sized Sand Dry Aragonite (30 lbs): Pet Supplies Amazon.com: Aragamax Sugar Sized Sand Dry Aragonite (30 lbs): Pet Supplies

2)
Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Fiji Pink: Pet Supplies Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Fiji Pink: Pet Supplies

3)
Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Bahamas Oolite: Pet Supplies Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Bahamas Oolite: Pet Supplies
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Old 08-28-2012, 04:35 PM   #5
 
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Quote:
Originally Posted by thekoimaiden View Post
I wouldn't need too much as I'm only going to a put a 2" sand bed. But that's still a lot of sand as my tank is 55 gallons. Maybe it's time to make a trip...

I'm seeing a lot of different sands. I'm guessing that Caribsea's Arag-alive has aragonite and crushed coral.

Are any of these sands what I'm looking for?

1) Amazon.com: Aragamax Sugar Sized Sand Dry Aragonite (30 lbs): Pet Supplies

2) Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Fiji Pink: Pet Supplies

3) Amazon.com: CaribSea Arag-Alive 20-Pound Special Grade Reef Sand, Bahamas Oolite: Pet Supplies
The first, the aragamax, would work; aragonite is calcium and magnesium. The other two might be for marine, they mention "alive" and "reef." Not sure what might be in them.

Be aware that using any calcareous substrate will raise the GH and pH substantially, which is fine for goldfish, livebearers, etc., but just so you know.
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Old 08-28-2012, 06:24 PM   #6
 
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I'm specifically looking to raise my GH and KH and to some degree my pH as my tap water is very soft (3 dGH). Great for cardinal tetra. Not great for goldfish. A bag of crushed coral just isn't cutting it anymore.

I think I'm going to go with the first one. It's a shame aragonite sand doesn't come in black...
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