Dont u use the peroxide?
I mounted the filter, works like a charm. All small stuffs stopps right there. A filter is important, when i see how it collects dirt.
I will cover the lids with plastic, should i use foil aswell, but under the plastic, so its really light-proof? Also, will use sm90 all the time and, have enough bubbles and temps down around 20°C. And never let any light get in.