First off WELCOME
I am happy that you found this place...the people are friendly and helpful, and you have already saved the plant
Anyway,
What we recommend is Schultz Canadian Sphagnum Peat Moss ( whew, out of wind )...
You can find the Schultz brand at Wal-mart or Target.
I have tried other types, but have not had luck with them...Schultz brand seems to be the best I have found ( over the counter )
When you repot...
Get a bigger pot, you probably have a 3 inch pot that the plant came with...so a 4 inch pot will be large enough for the plant over the long haul.
Add some peat moss/perlite to the bottom of the 4 inch pot...You can also add long fiber moss ( available at local garden centers ) first if you like....then add some peat/perlite.
GENTLY, turn over the pot ( not like your son
) and take out the whole plant WITH the soil... Doing that will allow you not to disturb the roots ( that is the major cause of shock for the plant, USPS is the other ).
Plant the whole clump of dirt with plant into the new pot...Fill the 4 inch pot with the rest of the soil you have.
All done!
No fuss, no muss
When mixing the peat moss and perlite, get a bucket, toss in some of each ( 60-40 or 50-50 ) and add LOTS of water ( make sure that you ONLY use Distilled or rain water ). Mix the two things together. It will make a soil...by themselves it is like sawdust and foam.
keep s up to date about the plant, and don't forget to place a kid proof lock on the new pot
Remember too, if the roots are touched or man-handled, the plant will suffer form some shock..it will recover. The best thing that you can do for the plant once transplanted is to provide it with the best conditions possible.
Good Luck!!!