Thank you all. I'm hopelessly hopeless at recognizing trees..

So I will try ebay as suggested by Vio.
Setting up a new tank - shrimp only. 50 liters. Got my chiller, so temp problem is solved. Using the built in LED light, which is very basic but shouldn't matter since I'm not planting anything.
Planning to use a sponge filter as well. I bought Benibachi soil which is specific for shrimps and also free beach sand that I scooped up from the beach in Phuket duing the Xmas holidays. Haha, couldn't resist.
I'm actually thinking of using the beach sand. After testing it, I found that it is quite inert. It didn't affect PH, or GH. It raised TDS a little bit from 65 to 85. And KH from 0/1 to 2. I think those parameters should be okay, as any soil will leech out something anyway.
Why I want to use beach sand? To get some experience and see whether it workable or not? If it does not, then thrash it and replace with shrimp soil...
i think i saw ketapang leaves sold in mudah.my..but not recently..not sure about the price compare to ebay..even some LFS did sell the leaves in plastic packet..where ur loc?