Arent they the same species just found in diff parts of the orinoco which explains diff types of water causing diff shades of blue-greenish?One of each would be less than ideal IMO, better off to pick one species and get 3-4+ of them.
What other stock do you have in the tank and filtration?... 2 of these guys in a 75 will be a pain with poop clean up lolI have both in my 70g and they seem to be fine with each other. They have all kinds of places to hide and stake out their own territories.
I cannot say what happens during the night of course. But I have not seen either of them to be stressed. They have been together for 4-6 months now. Not sure what long term will look like but they are both fairly large size.
L128-5’
L200-6”