Why do you suggest putting the UV
after the bio media?
The way I figured, the UV
will kill everything that does get filtered out by the first 2 basket filter, then go through the biomedia where the bacteria will eat it and break it down. Then some of the beneficial bacteria from the bio media will enter the tank through the filter and lach on to the surfaces of the tank.
If I were to put the UV
after the whole filter system, (after the bio media) then any of the beneficial bacteria coming off the bio media would be killed before it entered the tank, thus making the tank's gravel, rock, wood ect suffer.
As far as the 2 filters being different GPH
speeds. They are 250 and 300, and being a closed system, there is no way (once you bleed the system and seal it) that the filters would run dry. If I had 2 intakes and 2 outputs I would run them, but unfortunately I have one.