rocks

Hello fellow fish keepers! I recently went on a road trip through the desert and I noticed that there were lots of old lava flows that had lots of really nice rocks! I picked a whole bunch up for future use making a little waterfall in one of my nano tanks, but I did notice that these rocks...

Today I am reviewing the Aqua Della Combo-Lava faux rock for aquarium decor. This rock was purchased in January of 2015 and was in the tank for approximately 70 days. Aqua Della makes several different sizes and colors of faux rocks, none of which I would recommend purchasing based on my...

Hello! I did some searching in the forum about this and found tips on replacing tank rocks with soil and substrate. But I'm looking for info on adding soil and substrate to my rocks. The reason I want to mix it in or simply lay a layer on top is because currently I have a successful planted...

Recently the rocks on the bottom of my fish tank have been turning green. What does this mean and is it a problem. Also how can I make it go away?

Well I found these quartz rocks out here in Oregon 1 year ago and I have had no use for them. I am wondering if it is safe to put these in my planned aquarium. I have read in many places that quartz is safe, but these seem so DIRTY! I'm nervous they'll slowly pollute the water. I have had them...