16 Barbs, the catfish and a ruby shark.
NO3 75 mg/l, NO2 0mg/l, ph 7.2. No ammonia reading right now.
Hardness GH>5d, KH 6d
And, yes the gravel is quite rough - we should look at replacing, or maybe resurfacing, it.
I'm getting a little tired to read now. I will try and get ammonia stats...