leaching

My tank has been running empty in preparation for cycling for several days until I found a source of ammonia. Found the ammonia today, but something told me to test the water before adding anything. Aquarium: Ammonia 0.25 Nitrite 0.25 Nitrate looks like almost 5.0, definitely no Tap: Ammonia...

Hi Guys, Two days ago, (almost exactly three years into the lifetime of my planted discus tank), I finally resolved to get rid of my horribly coloured and tacky, (as well as completely waste saturated), substrate and replace it with some new quality stuff which I'd had my eye on for quite a...