What's this brown stuff on dry rock?

LAreefguy

LAreefguy

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So I was going to do some re aqua scaping and got some dry rock from a few very generous reefers. One piece almost has a rust look to a little part of it. Keep in mind this is not live rock absolutely dead rock. What do yall think?



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mmarro22

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I bought live rock recently and let it dry up. It had beautiful yellow sponge on it. After it dried up and I decided to use some of it what was once bright yellow turned black similar to this and much darker and deeper as well.

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LAreefguy

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mmarro22 said:
I bought live rock recently and let it dry up. It had beautiful yellow sponge on it. After it dried up and I decided to use some of it what was once bright yellow turned black similar to this and much darker and deeper as well.

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Thanks


Interesting, yea I just Coudnt figure out what it could be. But that makes sense. Thanks Manny!


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mmarro22

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LAreefguy said:
Thanks


Interesting, yea I just Coudnt figure out what it could be. But that makes sense. Thanks Manny!


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np. I'm hoping it comes back to life, looked pretty nice when it was alive.

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BeanMachine

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I got a nice little phosphate spike after adding the dry rock that I didn't cure long enough. I had it in water with bacteria for about 3 weeks, not long enough. Got .22 on the checker the other day. Woops.
 
BeanMachine

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lowbudget said:
dang thats some dirty rock mr bean
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Wierd thing that my acros look great, but my zoas are not looking so hot... I have lost quite a few slowly the last 3 weeks. I haven't added any in a long time so doubt its a pest. I added some GFO last night and am going to do a water change tonight.
 
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