Language:
-
-
- Advice for beginners
- Algae for refuge
- Angelfish
- Anthias Fish
- Batfish
- Blenny Fish
- Butterflyfish
- Clownfish
- Cometfish
- Damsel Fish
- Filefish
- Gobies Fish
- Gramma Fish
- Grouper Fish
- Hawkfish
- Mandarin Fish
- Marine fish farming
- Nano reef
- Pufferfish/Boxfish
- Rainbow Wrasses
- Serranid Fish
- Surgeonfish
- Traps & transport bags
- Triggerfish
- Useful species
- Various Fish
- Wrasse Fish
-
- Abyzz
- Aqua illumination
- Aquaforest
- Aquamedic
- Aquaprint uk
- Aquarium systems
- Aquaroche
- Aquavie
- AquaVitro
- Arka
- Artreef Rocks
- Ati
- Auto Aqua
- BEA Aquaculture
- Blue Life USA
- Blue marine
- Bubble magus
- Caraibsea
- Chemi Pure
- Colombo
- D&D
- Deltec
- Dennerle
- Druid Coral ADS
- DSR
- Dutchreefrock
- Dvh
- Easylife
- Easyreefs
- Ecotech Marine
- Eden aquarium
- Eheim
- Elos
- Esha
- Fauna Marin
- Flipper
- Glamorca
- GNC
- Grotech
- Habits and Goodies Recifathome
- Hanna instruments
- Hikari
- Hobby dupla
- Illumagic
- JBL aquarium
- Jebao Jecod
- Joes Juice
- Jurassic rock
- Juwel
- Kessil
- KZ
- Mag Float
- Marcorocks
- Marine direct
- Marine pure
- Maxspect
- Microbe Lift
- Milwaukee
- Nature's Ocean
- Neptune Systems
- Nyos
- Oase
- Oceamo
- Ocean nutrition
- Pacific Sun
- Philips
- Phytoplankton & Zooplankton Aquaculture RAH
- Polyplab
- Pontec
- PoseidonArtRocks
- Preis
- Prodibio
- Redsea
- Reef artists
- Reef Coaching
- Reef Culture
- Reef factory
- Reef Octopus
- Reefbreeders
- Royal exclusiv
- Royal nature
- Salifert
- Seachem
- Selco Inve
- Sicce
- Skimz
- Superfish
- Triton
- Tropic creations
- Tropic marin
- Tunze
- Turtle System
- Two little fishies
- Vitalis aquatic
- Vivid Creative Aquatics
- WaterBox
- Waterlink
-
- Aquarium chiller
- Aquarium pumps
- CO2 equipment
- Controller
- Coral Material
- Fish & coral care
- Heaters
- Librairie
- Lighting for reef aquarium
- Maintenance and cleaning
- Osmolator and Water Container
- Pipes, valves, etc. PVC / silicone
- Reactors
- Reef aquarium
- Reef filtration
- Reverse osmosis system
- SaltWater Food
- Saltwater supplements
- Sea water treatments
- Skimmer
- Substrates & salts
- UV & Ozone Sterilizer
- Water test
-
- Contact
Rac Grotech
Grotech – Calcium Reactors (RAC)
A German brand founded in the early 1990s, Grotech is recognized for its rigorous technical approach and reliable supplementation solutions in reef aquariums. Among its flagship equipment, calcium reactors hold a central place in demanding installations.
The Grotech RACs are designed to dissolve a calcareous substrate through controlled CO₂ injection, in order to maintain stable levels of calcium and carbonates. Their robust design, optimized chamber, and efficient internal circulation ensure homogeneous dissolution and consistent performance.
Appreciated for their reliability and ease of maintenance, these reactors integrate perfectly into modern reef systems heavily stocked with hard corals. They offer a durable and precise solution for stabilizing the essential parameters for coral growth in a marine aquarium.
Sort by:
There are 5 products.
