Brilliant...but be warned...RICS CAN BE ADDICTIVE !!!!!!!..lol
Start it low down and out of too strong a flow, like gentle water movement to look their best....after a few days move him up a bit if required and put in preferred locatin.
After about another two days trj popping a few mysis shrimp onto him and sit back and watch!!!
Good luck..be sure to add pics of him on here