Update,
Got about 12kg LR on the weekend, have to wait till more arrives in 10 days time

We are looking at getting another 25kg.
Did some fine tuning on the overflow and its running sweet, not much sound, and a flow rate of about 1800lt per hour.
Stocking so far,
2 x Yellowtail Blue Damselfish
1 x Bi-colour Dottyback
2 x Banggai Cardinal
2 x Clownfish - moved from the nano
2 x Pepermint Shrimp - moved from the nano
1 x Hingeback Shrimp - moved from the nano
1 x Bubble Tip
anemone
And some mushrooms