We are looking for a recommendation of another tang to go with a Gem Tang (zebramosa gemmata) in our 150g mixed coral reef tank. Tank is currently cycling and both fish will be added together. The Gem is already in our QT tank eating will and growing fatter. We also have Royal Gramma and Bangaii Cardinal Fish that will be added at the same time as well. A group of 6 blue/green chromis are the only other fish planned at this time. Thanks for the advice.