So in January, I was seriously considering to start a reef tank. So I spent about 2 months researching and I converted my planted 20 gallon long to a saltwater tank. I started my cycle. I've purchased powerheads, test kits, lights. Everything costed me around 200 so far. I've purchased dry rock from my lfs
which was $1.59 a lb. I thought too myself that it a huge plus that they had such cheap rocks. So I got around 13 lbs of it. Then I was doing more research and I came across a thread regarding the "curing" process of dry rock. I made my first mistake. I bought a phosphate test kit and I tested the water which had 0 ppm
of phosphate. What a relief. But now I came across a different thread about avoiding the rocks with large holes. Mine have a bunch of these large holes in them. I realized that my rocks were most likely lava rock because it was the holes were formed from the lava bubbling. Can you guys tell me if this rock is safe and if you have used it before? Sometimes after couple of days, the rock has some dust on it. Is it dissolving, or is it just a layer of filth? If I need to take it out what do I do about the bacteria that was colonizing the rock? Does it mean I have to start my cycle all over!? Please help!
Here are pics
Postimage.org / gallery - IMG 0596, IMG 0597, IMG 0598, IMG 0599