UK and USA point of view…
… for those who might see that post as an offensive one. Of course it’s a generalisation. Guess which point of view I’m more familiar 
.
Another Instructable
I’ve put another instructable on instructables.com called External aquarium heater. Basicaly it’s continuation of previous thread CO2 mixer.
focused on plants…
The tank after restart.
Foreground plants: Glosstigma elatonides, Sagittaria subulata; Middle (from left): Bacopa caroliniana, Rotala macandra, Bacopa monnieri; Background: Heteranthera zosterifolia, Mayaca fluviatilis, Ludwigia repens ‘Rubin’, Cardamine lyrata. Some crypts in shade of ludwigia, and temporary Java moss on bog wood. future: Hemianthus micranthemoides and Rotala wallichii & Ludwigia Inclinata instead Star Grass.
Some Tank Parameters: 70l; ph 6.9; CO2 from 500g bottle DIY difuser, light 3 X 15W Hagen Power Glo, Arcadia Fresh water, Philips Aquarelle 10K. Fertilization PMDD (250ml water+ 7.5g KNO3+11.5g K2SO4+11.5g MgNO3+7.5g Trace Mix)+Seachem Trace+Tropica PN+. Water changes 50%/week RO+tap water 1:1.