Fertilisation

Chart showing nutrient availability across pH 5 to 9. Nitrogen and potassium stay available throughout, while iron, manganese, copper and zinc drop away sharply above pH 7

How pH Impacts Nutrient Availability in the Aqu...

Dosing a nutrient is not the same as making it available. How pH controls iron and trace metal uptake in the aquarium, why chelation matters, and what to do when...

How pH Impacts Nutrient Availability in the Aqu...

Dosing a nutrient is not the same as making it available. How pH controls iron and trace metal uptake in the aquarium, why chelation matters, and what to do when...

Nutrient Deficiencies in Aquarium Plants

Nutrient Deficiencies in Aquarium Plants

Most deficiency charts do more harm than good. How to rule out CO2 and flow first, then read the symptom properly and fix the right thing.

Nutrient Deficiencies in Aquarium Plants

Most deficiency charts do more harm than good. How to rule out CO2 and flow first, then read the symptom properly and fix the right thing.

Which fertiliser does my aquarium need?

Which fertiliser does my aquarium need?

There is no best aquarium fertiliser, only the right one for your tank. How to work out your demand, and which of the four suits it.

Which fertiliser does my aquarium need?

There is no best aquarium fertiliser, only the right one for your tank. How to work out your demand, and which of the four suits it.