48litres, 16 Fish.... 6 Platys (sorry I don't know the type) only 2 Micky Mouses and 1 Sunset. 2 dalmation Mollies, 2 sliver mollies, 2 Black mollies. 2 cat fish, two orange Swordfish.
PH: 7.5
Nitrite: 2.5 (I've done a water change today)
Ammonia: 0
Nitrate: I don't know. I'll have to get a...