ok so I am setting up my filters for my 135g every thing came in to day from big als so I was mundering should I hook up my uv before or after the filters?
ok so I am setting up my filters for my 135g every thing came in to day from big als so I was mundering should I hook up my uv before or after the filters?
After the return pump, but make sure you get the correct flow rate through the UV. What GPH flow rate is the UV rated for? The UV doesn't work of you push the water through it too quickly.