[24Tropheus]

Very good idea to trade those and get a colony of one type. (Its harder to build from small numbers than to get a good colony settled (tried both and a group that already know each other is often the most peaceful ) In a 150g your choice is very wide. What type do you like most?
(Firecrackers does not tell us what fish you have, too many have been sold using this made up name for us to know which fish you mean)