I recently bought 3 extra variations of goldfish to go with my existing one, the tank is about 25Gallons but my Gold/White fish keeps charging into the others randomly. It seems to be very periodically but
I'm just worried. Any tips?

Fry it up with a beer batter, and a platter of fries.

I would be concerned that the aggressive fish would end up killing the other fish in the tank. Perhaps you could put him in a separate container that could set right next to your aquarium. You could better observe his reaction to the other fish that way. If he doesn't adjust to aquarium life, find him a new home.

I think you need to separate it from the others or it will kill them

take the aggressive fish to your fish store and trade it in for new fish that arent aggresive

sounds like he trying to breed. check th efish and c if you cant see any white pimples on his gill plats if so then he trying to bred.