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Overall I've been pretty lax with my maintenance and distracted by the frag tank build.
Chris, how did you clean the Pukani? Was it bleach AND acid? If so, what ratio and what kind of acid was it?
I soaked all of the rock in bleach, rinsed, and followed with acid. I think it was only vinegar because I did it indoors, but muriatic works quicker if you have the ventilation.
Excellent, thank you. I am doing the 24 hours bleach soak but not sure if I'm going to do the muriatic acid as well. Do you think a bleach only would be enough? And you said vinegar? Did you use vinegar instead of acid? And last thing; when you put together the pvc piping and the upside down triangular rock on the right side of the tank, how far did you drill into the rock? I am going to try something similar but afraid of the Pukani cracking.
A bleach and rinse does a lot of work to remove stuff. If there's any stubborn junk left, an acid bath will help dissolve that top layer of rock and release it. Vinegar is an acid and will do the job, but requires a longer soak time and a lot of gallon jugs. The muriatic acid videos and write-ups are pretty good, although people tend to go a little overboard in my opinion.
I drilled about 8 inches up with one of those hole saw bits. I actually had the same concern and drilled after a soak in water, which seemed to help reduce the brittleness of the rock.




why two carbons?
why two carbons?
I believe dual carbon both increases the lifespan of the carbon blocks and is also better for water containing chloramines.
Chris could have his own reasoning, however.

