Both brothers first appeared in Seahorse Temptation. One, who was red and yellow in color, led his band of seahorses to join with First Squad and helped them against the flying fish army. After the defeat of the flying fish, the Seahorse Prince allied with Big Green. After being kicked out of Big Green on account of reckless use of the seahorses' destructive capabilities, First Squad took a walk and found some of Highroller's forces, also using seahorses, though this group was led by a different, blue and green, seahorse prince. Lin Chung, however, was the only one to realize that all the seahorses were full of Chaotic Energy, encouraging belligerence and ill-will in First Squad, and that the seahorses were not truly allies of either side, and instead were using them to fight their own war. Eventually, this was made known to all and a temporary truce was formed against Twin Masters and the seahorses. The two brothers demonstrated the ability to combine in the ensuing battle.