pdludbrooke
Fish Crazy
I found a nice bit of solid slate like rock toady covered in green stuff and mud, I cleaned it all up, put it through the dishwasher (no detergent) baked it for half an hour at 250 c and washed it again, then through the dishwasher again (no detergent) then rinced thoroughly, I have put it in an aquarium (no fish yet still cycling) and just now noticed a continuous stream of tiny bubles coming from one part of the rock, I have had a scratch and a rub of where they are coming from any ideas, is it safe for aquarium use ?