Fishless cycle is complete, ammonia and nitrite consistently at 0ppm. I did a big water change using a nitrate removing gadget as my tap water has high nitrates, and got it down to about 10ppm. So this morning I headed off to the shop for some fishies! To start off with, I've got myself 2 female platys and 4 male guppies. They seem to have settled in well and are enjoying their new home!