i have not opened the package because i think i made the wrong choice and should have purchased the aquasanrise plus R120 instead... i need 2 units for my mixed reef (heavy to sps) and dont know which system is better choice? glad i did not hit purchase on the second unit just now...waiting on reply from reefbreeders to see if i return this photon and get 2 units aquasanrise or buy another photon????