Hi, these guys are really hard to come by, so in case anyone is looking, there are something like 8 (29/5 3pm) left in Aquarist Chamber located at Serangoon area. You can google to find the exact location/ address.

The Zebras are adults, between 4 to 5cm. They are rather well fed, healthy as I see them. I asked the keeper and he immediately used a PH pen which returned a result of 6.6. Bought 3 myself, that's all, hope this is useful.