Buddyboy67
Fish Herder
Mandarins exude a highly toxic slime, hence their colouration. Lion could have took him but would have spat him back out, but most fish seem to recognise these little guys a poisonous.
If the tank is newly set up be sure to get some rotifer / pod cultures to add regularly to aid his dietary requirements....
If the tank is newly set up be sure to get some rotifer / pod cultures to add regularly to aid his dietary requirements....