Which Hydra system to choose?

choose for the goal. not by the product name.

If you have doubts among several Hydra products, start here. First identify what you want to solve in the aquarium and follow the corresponding path.

🌿 I want to improve plants

Core Nutrition — Essential Nutrition

Macros + Micros

Choose Core if you want a simple macro and micronutrients routine and you prefer to manage carbon separately.

Pro Nutrition — Most Chosen

Macros + Micros + Carbon

Choose Pro Nutrition if you want complete nutrition + carbon in a single solution. It is the main recommendation for most planted aquariums.

Pro Growth — Premium Performance

Macros + Micros + Carbon + Dark Magic

Choose Pro Growth if you are looking for Intense Growth, Post-Pruning Recovery, Surf and Biostimulation.

Summary: Core = Essential → Pro Nutrition = Complete → Pro Growth = Maximum Performance.

💧 I want clearer water

Suspension particles / turbidity: shine

Organic waste / sludge: bioclean

Yellowed water / tannins / dissolved organic: mashed potato

Elevated nitrates measured: nitrax

If you have particles + organic matter at the same time, see the clean water system.

🧬 I want to improve aquarium biology

biomax — Increases the surface available in the filter.

biocore — reinforces the microbial community.

bioclean — It helps to degrade organic matter.

If you want Biocore + BioClean in a single solution, see the bio system.

⚡ I'm setting up a new aquarium

fast cycling — Catalyst One + Two to develop and validate the nitrogen cycle.

fast cycling pro — Fast Cycling + Biocore for additional microbiological reinforcement.

IMPORTANT: Do not enter the fauna based only on the number of days. confirms ammonia and nitrite through tests.

🧪 I need to adjust the water

low gh: gh+

KH DOWN: kh+

GH + KH lows: Parameter Control System

Chlorine/chloramines in tap water: safe

Measures GH/KH before correcting and always adjusting gradually.

🌱 I need to reinforce the substrate

hydra roots It is suitable for inert/stopped substrate and plants with strong root feeding.

If you already want Pro Growth and you also need roots, see pro growth plus.

still having doubts?

Simple rule: buy the solution to the problem you have today. You don't need to use the entire Hydra range at the same time.