Hi sciencefiction, glad to hear things are working out with your tank and the fish and your potted plants🙂🙂
It feels a bit like I am cheating a bit, sort of "having my cake and eating it" But the Discus are taking priority at the moment. It does seem strange though, not adding any ferts, no Co2 being pumped in, lower level lighting, just good food and regular water changes.
I bought a new HMA filter from Mark Evenden at Devotedly Discus, then followed the guide to plumb it in to the hot and cold water supply using a Yorkshire Pegler TMV Valve which mixes the water to the right temperature.
I have drilled two holes under the tank, one leads to a drain outside via a 3/8 tube, the other to the HMA unit. I turn two taps above the tank, one drains water out and the other lets water in to top up from the HMA filter.
No more buckets, no more hose pipes running through the dining room to the kitchen and outside, and no need to fiddle with the thermostat on the combi boiler. Keeps her indoors well happy, so I'm chuffed as well!
Cheers,
Steve