deepwell water is around 13 kH on a sera test kit and 18 on an API test kit. The gH shouldnt be less than these numbers. i.e, 13-18 or more. Cebu has a LOT of limestone (or cebu island is mostly limestone) so the gH numbers are definitely higher.
at equilibrium, ang ph is around 7.5 to 8. Lisud i match ang color sa test kit.
this is for deepwell lang, i dont know unsay numbers for mcwd.
Cebu deepwell water is perfect for african cichlids.