Calgreen is a very high-quality product that contains a certain nitrogen-calcium compound that is optimal for plants. This compound is a building block for the cell walls of the plants, resulting in a more compact and heavier flowering. This product protects 80% against most mold and rot diseases. An additional calcium content in the medium means that the ions and other nutrients can detach more easily from the colloids and the plant can thus have more building materials at its disposal. Calgreen consists of very high-quality raw materials and can be mixed with any Metrop product.

Always add the Calgreen to the irrigation water last!!

With MR 1 and MR 2 and Calgreen, the breeder has a first-class fertiliser series that promotes the formation of the largest possible root system and a strong plant tip on every medium and thus the highest possible yield.

• Visibly improves nutrient absorption through the roots

• Guaranteed compact and firm flowers

• Ensures a measurable weight gain of the final product

• Ensures optimal chlorophyll and protein synthesis due to sufficient magnesium content

• Contains no harmful dyes and is not diluted with water

Metrop Hydroponics is a company specializing in liquid plant fertilizers for agriculture, horticulture and hobby breeding.

Based on years of breeding and testing experience, we approach the plants differently than most fertilizer manufacturers.
The most important starting point is to give the plant what is best absorbed in each phase of growth and flowering.

The Metrop hydroponic fertilizer products have been developed and improved by means of a full nutrient analysis of the plant sap in every other week of the growth and flowering cycle.

Metrop Hydroponics make these fertilizers in collaboration with 2 laboratories, one of which has its own factory, specialized in the production of highly concentrated liquid fertilizers and problem solving in specific plants, and the other specialized in the production of so-called stimulators fertilizers.

Because we use different raw materials for our fertilizers than other fertilizer suppliers, we are able to achieve greater NPK differences and this leads to better and greater development of the plants.

These "more expensive" raw materials in fertilizer are free of cadmium and other heavy metals and are virtually chlorine-free.
For growers and consumers, this means a healthier end product with a better taste.

Metrop Hydroponic Fertilizer is Organic.