Black crap on rocks

Green0j0s

Member
It's not a sponge is it? I have some in my sump but it isn't wide spread like that. In fact it hasn't spread off of the one rock I have it on.
 

Joe5688

Active member
I checked Wal-Mart but they didn't have what I was looking for. Might try target

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Joe5688

Active member
it almost does look like mold lol.

In pictures it looks a lot more fuzzy then in person. Almost maybe looks like dead algae?



 

Joe5688

Active member
havn't seen any of my CUC or foxface touch it yet.
This started after I started dosing calcium and alk. I wonder if maybe it caused something to start growing lol.
 

Knuckles

New member
I was getting that same stuff all over my rocks. Does it blow off? I didn't know what it was so I dosed chemi clean and it went away in two days.
 

Joe5688

Active member
I'm dosing brs 2 part. I haven't tried to blow it off or anything yet

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Venom

Premium member
Looks like jol and the walking dead expelling waste I'll take them both to help you out lol
 
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