Growing Supplies; where to get...

Coir pucks; http://www.southdevonchillifarm.co.uk/
Hydroponic equipment: www.bangsaiagro.com
Litmus Strips; The strips can be gotten from 
CTi & Science Co., LTD.
E-mail; cti@cti.th.com
Web; www.cti.th.com
The strips cost ฿350/100, which is about $12 USD
Perlite, Peat-moss, Fertilizers, etc.; Chatuchak Weekend Market (also known as J.J.) in Bangkok.
It can also be found at; Sanam Luang Song Market in Phuthamonthon (on the way to BKK). There it's ฿70 per bag (small bag) and ฿950 for a 100 liter bag (a very big bag).