BeckyBoo Posted February 17, 2009 Share Posted February 17, 2009 ...Silly question time, having been to Wales with the three smallies I have, obviously, come home with half the beach in bags and buckets. We have several very LARGE pieces of white rock which shine as they have crystals in them and we wondered if we could put them in the fish tank. Has anyone done this? It might seem daft but I worried in case they would poison the goldfish as they came from the sea Any answers gratefully received thank you BeckyBoo Quote Link to comment Share on other sites More sharing options...
Chookiehen Posted February 17, 2009 Share Posted February 17, 2009 We used to have a large chunk of white slate-like stone that came from my parents garden in our fish tank. We cleaned it thoroughly first before we put it in, and had no problems with it. We gave it a final soak in water taken from the tank during cleaning before we put it in the tank. Quote Link to comment Share on other sites More sharing options...
Joojoo Posted February 17, 2009 Share Posted February 17, 2009 Hi Becky. I definitely WOULDN'T use those rocks in your tank. They will always contain a certain amount of salt and this will contaminate your tank. Jue Quote Link to comment Share on other sites More sharing options...
chooklady Posted March 3, 2009 Share Posted March 3, 2009 It could also change the water chemistry making the water softer or changing the pH etc. Hope this helps. Nicola Quote Link to comment Share on other sites More sharing options...
