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Discussion Starter · #1 ·
I picked a really cool rock for my tanks. It was whirs. I likes the way it looked. Now I found out it was a dead rock from a salt water tank (was a live one). Is it okay?

Will it effect my tank in any way?

This is from iPhone as I'm in NJ with no power or anything.
 

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no good.
reef rocks are argonite, made of CaCO3 (calcium carbonate). in a freshwater tank where the ph is lower, that rock will start to dissolve, increasing your gh (cause of the Ca++) and your kh (due to the CO3--).
sorry, but unless you plan to keep your ph around 8, its going to alter your kh and gh very significantly, and get smaller and smaller.
 

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try a vinegar test on it.
if its like normal dead rock, base rock, then it should be ok of opae ula tanks and sulawesi setups.
 

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Discussion Starter · #5 ·
my ph is going up and it is dissolving ...

hmm.. my daughter really liked the white rock look so did i.. any white rocks for fresh water tanks... one tank is only 8x8x8 and mine is a 6 gallon. so SMALL rocks..
 
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