I love this thing! thanks for posting it! I wish they took into account substrate and algae content too, though those variables might not be so accurate.
I am gonna keep using this thing. :)
My 20g long with an Aquaclear 20 filter and 3 Albino Corys, 3 Cardinal Tetras and 1 Male Betta makes me have:
Recommended temperature range: 75.2 - 80.6 F. [Display in Celsius]
Recommended pH range: 6 - 7.6.
Recommended hardness range: 5 - 15 dH.
You have plenty of aquarium filtration capacity.
Your aquarium filtration capacity for above selected species is 140%.
Recommended water change schedule: 15% per week.
Your aquarium stocking level is 47%.
1 Doberman Mix: Emmy, 2 DSH Cats: Rowan & Jacob, 1 Bearded Dragon: Rainier (aka Mista Lizad Man), 1 Eastern Box Turtle: Greta, Two 5g tanks: Alchemy (Halfmoon) and Custard (Yellow VT)