I had may 50gl with LR for about seven months with a double pc light,one 96w 10k ,one 96w atnic,then i decided to upgrade the pc light fixture to a t5 with six bulbs,3 39w 10k,3 39 atnic,that was tree weeks ago and now i'm having algae groing in the walls of the tank.I went to skiptons and got 6 turbo snails and12 nasssarius,there's also a yellow tand and a algae blenny in the tank,but i'm still having the algae probleam.
I was using tap water up until i got the t5 fixture but now i by RO water at skiptons,but still i get algae in the walls of the tank...what should i do to get rid of the algae ?

I was using tap water up until i got the t5 fixture but now i by RO water at skiptons,but still i get algae in the walls of the tank...what should i do to get rid of the algae ?