Andy Sager
Aquarium Advice Addict
Yes, it works.does this work?
From what I can see, it looks like the filter with the white media is in front of the intake to the HOB filter and may be interfering with the intake so less is being filtered out of the water. I have 2 suggestions:
1) place the filter with the white media on the opposite end of the tank.
2) Place that filter return at the surface so that the flow is either going across the surface or flowing downward towards the center of the tank vs the water flowing upwards.
By doing these 2 things, your HOB filter will have more water going through it and the filter material in the HOB should help remove more particles out of the water as well as break up more of the surface to break up the film for better removal.