okay got a coconut today..
1- used a nail to puncture the coconut to drain it
2- used a saw to cut it in half (mine wasnt scored)
3- took out the insides with a fork (was pretty easy)
4- boiled the shells 3 times (20 min each) to get rid of the tannis.. did it until the water was somewhat clear.. before the 3rd boiling i dried the shells with a paper towel and took sandpaper and sanded down the tops slightly (this got rid of the hairs and made it somewhat smooth)
5- letting the coconuts stay in the water they were boiled in overnight
Future step
1- add the java moss to the shell(s)
(i might try and have one shell done by the method of having it outside the tank.. and the other shell, having it inside the tank with the java moss.. will see which one has better/faster results)