Are you planning on moving them to a MUCH larger tank? They get to about 6 inches. They're also really aggressive and will probably kill each other in very short order in the 10 gallon.
Any time you have new fish, you need to give them time to acclimate to their new environment. What they're doing is normal.
75: blood parrots, featherfin cat, emperor tetras, turquoise rainbowfish, BN plecos, japanese trapdoor; 46: WCMM, gold inca snails, ghost, bamboo & amano shrimp, kuhli loaches, rummynose & ember tetras, endlers, platies, flame gourami, guppies; 16: pygmy, peppered, loxozonus corys, otos, assassins, RCS ... ~ Research PRIOR to purchase.... ~