I was talking about our coral rock
Answers to your questions ....
We use water from the Kaimais.
Yes we have sand (about .5/1cm thick)
6 Fish
190 Litres
Ammonia 0/0.25
Nitrite 0
Nitrate 0
kH soft and the other half is just doing the other tests for you. We don't do Ca or Mag tests. Should we??????