With this set-up.
Your using All the gravel(substrate) as a biological filter.
Your using the PH to power the biological filter.
Your using the HOB(AC30) filter as a Mechanical filter.
If you want, purchase an extra Foam peice for the filter(completely optional). But could help clean, that little bit extra.
They come with 1 foam, a bag of carbon and now a bag of bio-media.
I, and alot of people here don't use carbon in Planted aquariums. And probably some that don't use it anywhere.
When its weekly maintenance time. And sense your using the substrate for bio-filtering. You can take the AC off and clean it as much as you want, and not worry about killing any good bacteria.
So blasting the foam clean with tap water is fine! ; )
Your using All the gravel(substrate) as a biological filter.
Your using the PH to power the biological filter.
Your using the HOB(AC30) filter as a Mechanical filter.
If you want, purchase an extra Foam peice for the filter(completely optional). But could help clean, that little bit extra.
They come with 1 foam, a bag of carbon and now a bag of bio-media.
I, and alot of people here don't use carbon in Planted aquariums. And probably some that don't use it anywhere.
When its weekly maintenance time. And sense your using the substrate for bio-filtering. You can take the AC off and clean it as much as you want, and not worry about killing any good bacteria.
So blasting the foam clean with tap water is fine! ; )