Is this rock ok? - The Planted Tank Forum
 
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post #1 of 2 (permalink) Old 08-04-2016, 12:47 PM Thread Starter
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Is this rock ok?

Long time ago I got some large river rocks from the pet store. Now I want to tie some windelov java fern onto one. It has a seam on one side that's reddish. Iron content? I can scratch it w/a kitchen knife. I put vinegar on it, also tested w/the nitrate test bottle #2 from API kit- doesn't fizz. I put it in a bucket w/some tank water. After a few days it has not changed the pH - 7.4, but the gH went up. My water is already kinda hard- gH 10, kH 6. The rock made it gH 12. Is this still ok to use in the tank?


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post #2 of 2 (permalink) Old 08-04-2016, 01:22 PM
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I'd toss it (even though my dad had a thing about not throwing rocks!) - another rock is easy to find.

Tank On, Mike-
60g Marineland Community, Finnex Planted+ 24/7, Silica (pool filter) sand.
10g, 29g, & 37g fry grow out tanks, 110g stock tank.


What came first, the chicken or the egg. It was the egg, but not the egg from a chicken.

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