Low, Medium, and High Light Plants
A species by species table of what each common aquarium plant needs at substrate level, and exactly how each one fails when...
planted tank
7 guides
CO2 Diffusers vs Reactors Compared
Dissolution rates, working pressure, flow penalty and running cost for five ways of getting carbon dioxide into aquarium water.
How to Set Your CO2 Bubble Count Safely
A three week ramp built around a measured pH drop, with the daily checks that catch trouble before fish start breathing at...
PAR Explained for Planted Tanks
The one intensity figure that predicts growth, where it has to be measured, and why hanging height beats every spec on the...
Drop Checker Colours and What They Mean
How the sealed air gap works, why the fluid must be 4 dKH, and why the colour is always slightly out of...
CO2 Injection Setup From Cylinder to Tank
The eight components between pressurised gas and dissolved carbon, what each one does, and the order in which to commission them safely.
Aquarium Lighting: PAR, Kelvin, and Photoperiod
Three numbers decide whether a planted tank works, and only one of them is printed honestly on the side of the box.