Ya for sure they are Motoro's nice looking ones too! The pattern should be stable there usually isn't much morfing basically from the time they are born.
About the clown loach , its already die, but the rays didnt eat it, it past because i change all the water with the new one, i havae green water problem, why my motoros have a different patern in the first pictures?
thanks
Nice Motoros. Brazil has Motoros stingrays living in our rivers, from Northern part of the country to the mont Southern. Not many Brazilians eat them but many fishermen and "ribeirinhos" (people that lives next to rivers and make living from the blessings of Mother Nature dislike them (I may say, hates the stingrays. They all have barbs that if stung, it is said to hurt badly for as long as 2 weeks. But they are not attackers!) There is one specie of Motoro that is typical of our rivers. Those Motoros have white blot surrounded by a black ring. This does not seem like to be the description of your Motoro.