Yeah.. that may be one way of it. My fren told me a huge pond on surface will require an 'ikat 10' concrete. While 'ikat 4' most probably will fail, whatever that ikat-mengikat means.

Now if we use fibreglass lining.. we may not be able to use tiles on the bottom, or the wall, rite?

Last week, someone wanted to know how much this cichlid cost.
I already pm for measurement and price from Arare.

12inch rm "huat huat zero".