OK update on the ballast,. so far T5 Fixture ballast that does 54watt 2 lamp are $28 dollar from A and A electrical Supply Chelsea Ma 617-889-0720 and the socket are $4 dollar each, if I need like 4 socket that is $16 plus $28 = $44 for the t5 Ballast and 4 lamp socket.
I need to shop around for the socket $4 dollar is still expensive---------
the 120 gallon it have frag,. I am thinking of moving the frag to a small tank like 12 nano,. the 120 will have fish only.
you will end up adding all the detritus that comes out of the 120 into the 14, also if you get a bacteria or something in the 120 you will introduce it into the 14