Went to my LFS today and seen some hybrid rainbow sharks and red tail sharks just looked like normal ones but a darker black line down the middle just wondered if anyone knows anything about them, size? agrression etc... Cheers
Well hybrids should not look just like "normal ones" whatever that is. RTS have red tail fin, rainbow sharks have all red fins, a hybrid should look like a fish with random red fins. IMO what you describe sounds alot like a really stress shark. If your thinking its a albino X normal cross it isn't. Those sharks are true albinos. It is a recessive gene. A albino x normal cross would produce fry that all look like a normal "black" shark. If this is done within the species then its not actually a hybrid anyway.