How to sterilize rock - The Planted Tank Forum
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post #1 of 8 (permalink) Old 12-09-2006, 07:48 PM Thread Starter
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How to sterilize rock

I'm upgrading to 2 a 20 gallon high. I've already taken the rocks (4) out of the tank to make it easier to catch the shrimp tomorrow.

while the paint on the tank is drying, i should sterilize the rocks. There is a green algea starting to grow on them that looks like the algae that makes up marimo balls. I want to nip this in the bud before it gets out of hand. The algea is only on the rock.

What should I do? 10/1 bleach dip? for how long? would it be bad if i used extra seachem neutral buffer (to neutralize the bleach) and air-dry overnight? I know this will kill the bacteria in the rock.

The rock looks pretty porous, but i don't know if it auctually is.

Would boiling kill the algae?
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post #2 of 8 (permalink) Old 12-09-2006, 08:54 PM
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Boiling it will do will a bleach will putting it in the oven for 15 minutes, (stinks though). Boiling is a preferred method for me as there are no chemicals involved and it seems to clean up the rocks as they boil. Bleach dip will work, but you'll have to wait as the algea die/decompose in your tank water. I'd go with boiling, it's easy and gets the job done.

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post #3 of 8 (permalink) Old 12-09-2006, 08:56 PM
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I think most people use a 20/1 bleach mixture. But boiling also works. I had BBA on a rock and soaked it in a 20/1 beach mixture for three days then rinsed it real well. Soaking it for three days made it easier to brush away the BBA because just killing it wasn't enough. It was hard to scrub it off after only a 30 minute soak.

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post #4 of 8 (permalink) Old 12-09-2006, 09:07 PM Thread Starter
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I brushed it and boiled it very thoroughly. they are cooling and steaming right now lol.

I'm really paranoid about bleach... even when I recrarge purigen I use a couple of tablespoons neutral regulator in a small bowl of water for each purigen bag. That's probably too much....
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post #5 of 8 (permalink) Old 12-09-2006, 11:02 PM
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If you want to neutralize the chlorine left over from bleach use Seachem Prime or equivalent. Neutral regulator doesn't do that job, as far as I know.

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post #6 of 8 (permalink) Old 12-10-2006, 12:15 AM Thread Starter
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It neutralizes chlorine, chloramine, or ammonia.
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post #7 of 8 (permalink) Old 12-10-2006, 01:38 AM
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I wouldn't be overly concerned with chlorine. Its extremely volatile. Just bleach with a strong solution in the future and then rinse well, and let air dry.

If you have to use the rocks right away, then I would use prime for a soak before reinstalling.

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post #8 of 8 (permalink) Old 12-24-2009, 03:15 AM
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Boil it in high temperature. This was posted three years ago, so I'm wondering if you have somehow considered getting air and water sterilizers to prevent the growth of mold?
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