Good morning. I'm a newb. I have a 20g with a Tetra Whisper 30EX power filter. The filter has a "bioscrubber" which just looks like a piece of plastic where I assume bacteria grows on this and I do not remove it. It also a carbon filter insert. It has a timestrip that tells you when to change the carbon filter. Usually after about 3 weeks. The tank has 2 guppies, 2 corys, 1 molly, 1 play, 5 neons & a mystery snail. All water params are 0. A few live plants. I change 30-40% of water once a week.
I also have a 2g Fluval Spec with a few shrimp and small live plants. The Fluval came with a rather large (compared to the small size of tank) sponge filter. Inside the sponge are two cut out areas where there is a place for two bags - one bag of bio balls - and one bag of carbon. I replace the carbon once a month.
The 2g is crystal clear. The 20g is clear but not crystal clear like the 2g. There is a marked difference. Obviously I want the 20g to look as clear as the 2g. I really don't think there is any kinda bloom going on. It looks more like small particles making it a bit hazy but not milky.
Or maybe I just need to scrub the inside of the walls? Best way to clean the walls?
Should I be using a different type of filter insert besides this carbon one that goes with the Tetra Whisper?