iwishtofish
Active member
Yes, many times in fact. When I do this I put 200 micron socks under the drains to catch the detritus. It's amazing how much junk has come off the rocks since first putting them in the tank. I don't know where it all came from but there was quite a bit of junk. :hmm5:
I think this rock must just catch and hold a ton of detritus by the very nature of its structure. The stuff is like swiss cheese, after all! I feel better - because of this - that I bought a skimmer rated for twice the water volume.
My rock is not yet in the tank. When I soaked it in a water/vinegar solution and then sloshed it around, mostly just rock dust (or dissolved rock) and a tiny bit of rubble came out. That's how clean it appeared to be.