Red Pom Pom (Gracilaria hayi) is another quick growing macro algae that ranges between bright red and burgundy. As with most macro algaes, it does best in a refugium where it helps reduce nitrates and phosphates. It prefers a minimum of 8 hours lighting at 5k spectrum or higher, and a medium flow. It can also be tumbled gently with air stones.  
 
Small - Golf ball
Medium - Baseball
Large - Softball
Jumbo - .5 lb