Marina® Decorative Marbles
these are very bright and colorful. i have them in my beta blood stained blade's tank and, black beauty's tank. in fact i have purple (dark) and she blends in!
December 28, 2012
These are cool for fish tanks, and very cheap. Mine have never chipped so far, so that's good. Gravel rock things are sometimes a little bit better, but these are a lot more decorative. You might end up cleaning these off more, though. I'd rather get them cheaper at a dollar store or craft store, though.
April 27, 2012