Knowledge

How much magnesium your plants need, why Epsom salt is the right choice, and what that percentage on the label actually means.

Why DIY macro fertilizer for planted tanks is cheaper and simpler than it sounds – and the three things that actually matter when mixing your own.

A reading near zero doesn't automatically mean a deficiency — often the tank has already consumed or bound up the nutrients. Why fixed dosing schedules run into their limits here.

Urea is a cheap, potassium-free nitrogen source — but plants can't use it directly. How the conversion works, why ammonia readings can spike briefly, and what matters for dosing.