Ok, there were a total of 26 clams - 13 crocea, 6 maxima and 7 squamosa.
However 5 of the croceas weren't mine, I had just picked up a shipment from the airport and my mate picked them up that afternoon and I also had 1 casualty from the shipment leaving me with only 7 croceas (20 clams total).
The tank is a 740L (190G) with 3x400W 10K Coralvue lamps. It has a locally built beckett skimmer. Circulation consists of a sequence dart and tunze 6080 with a total turnover of 35x including the OR6500 return.
While I hope to get a few more clams, I think I will start stocking more heavily with SPS in the near future. Tank temp sits at 27C controlled by 3x300W schego titanium heaters and a Aquasonic Aqualogic 1/4HP chiller, all controlled by a pair of Nema controllers.
Oh, tank is about 4 months old.