Uploaded June 2026 | Updated September 2026, 3 weeks ago
WERBEVIDEO
Do aquarium plants really need CO₂? I thought I already knew the answer… so I built two identical aquariums and tested them side by side for 30 days.
One aquarium received CO₂, the other didn’t. Everything else—from the substrate and hardscape to the plants, lighting and maintenance—was kept as identical as possible. I expected the outcome to be obvious. Instead, this experiment completely changed the way I think about growing aquarium plants.
This is the very first episode of my new 30-Day Experiments series, where I’ll be testing common aquascaping advice to find out what actually matters.
💬 What should I test next? Let me know in the comments!
👕 Aquascaping Merch
mosscotton.com/shop
━━━━━━━━━━━━━━━━━━━━━━
⚠️ Affiliate Disclaimer
Some of the links below are affiliate links. If you purchase through them, I may earn a small commission at no additional cost to you. Thank you for supporting the channel!
━━━━━━━━━━━━━━━━━━━━━━
🌿 Plants used
Micranthemum / Hemianthus callitrichoides “Cuba”
aquasabi.de/Hemianthus-callitrichoides-Cuba?ref=ls
Eleocharis sp. ‘Mini’
aquasabi.de/Eleocharis-sp-Mini?ref=ls
Marsilea hirsuta
aquasabi.de/Marsilea-hirsuta?ref=ls
Hottonia palustris
aquasabi.de/Hottonia-palustris?ref=ls
Micranthemum / Hemianthus glomeratus
aquasabi.de/Hemianthus-glomeratus?ref=ls
Rotala rotundifolia “Singapore Blood Red”
aquasabi.de/Rotala-rotundifolia-Singapore-Blood-Red?ref=ls
━━━━━━━━━━━━━━━━━━━━━━
🛠️ Equipment used
UNS Dual All-In-One Cube Aquarium
aquasabi.de/UNS-Dual-All-In-One-Cube?ref=ls
Skylight FOQAL WRGB LED
garnelen-guemmer.de/skylight-foqal-wrgb–aquarium-led
UNS Strata Seiryu Stone Hardscape
aquasabi.de/UNS-Strata-Seiryu-Stone?ref=ls
Oase BioCliff Filter Media
aquasabi.de/Oase-BioCliff?ref=ls
Mesh Bags
amzn.to/4eGSOUN
Tropica Aquarium Soil
aquasabi.de/Tropica-Aquarium-Soil?ref=ls
Tropica Aquarium Soil Powder
aquasabi.de/Tropica-Aquarium-Soil-Powder?ref=ls
Pachi Aquarium XL Sand Flattener
https://pachiaquarium.at/products/xl-sand-flattener
AQUARIO Neo CO₂ Diffusor Curved Tiny
aquasabi.de/AQUARIO-Neo-CO2-Diffusor-Curved-Tiny?ref=ls
Chihiros CO₂ Regulator Mate
aquasabi.de/Chihiros-CO2-Druckminderer-Mate?ref=ls
ARKA Nite Out II
aquasabi.de/ARKA-Nite-Out-II?ref=ls
ARKA Special Blend
aquasabi.de/ARKA-Special-Blend?ref=ls
APT Zero Fertilizer
aquasabi.de/2HR-Aquarist-APT-1-Zero?ref=ls
or with 12% discount directly from 2Hr Aquarist:
2hraquarist.com/kulvni
(No discount code needed 😉)
━━━━━━━━━━━━━━━━━━━━━━
📸 Instagram
instagram.com/juri_js
#Aquascaping #AquariumPlants #PlantedAquarium #CO2 #Aquascape #NatureAquarium
WERBEVIDEO
Do aquarium plants really need CO₂? I thought I already knew the answer… so I built two identical aquariums and tested them side by side for 30 days.
One aquarium received CO₂, the other didn’t. Everything else—from the substrate and hardscape to the plants, lighting and maintenance—was kept as identical as possible. I expected the outcome to be obvious. Instead, this experiment completely changed the way I think about growing aquarium plants.
This is the very first episode of my new 30-Day Experiments series, where I’ll be testing common aquascaping advice to find out what actually matters.
💬 What should I test next? Let me know in the comments!
👕 Aquascaping Merch
mosscotton.com/shop
━━━━━━━━━━━━━━━━━━━━━━
⚠️ Affiliate Disclaimer
Some of the links below are affiliate links. If you purchase through them, I may earn a small commission at no additional cost to you. Thank you for supporting the channel!
━━━━━━━━━━━━━━━━━━━━━━
🌿 Plants used
Micranthemum / Hemianthus callitrichoides “Cuba”
aquasabi.de/Hemianthus-callitrichoides-Cuba?ref=ls
Eleocharis sp. ‘Mini’
aquasabi.de/Eleocharis-sp-Mini?ref=ls
Marsilea hirsuta
aquasabi.de/Marsilea-hirsuta?ref=ls
Hottonia palustris
aquasabi.de/Hottonia-palustris?ref=ls
Micranthemum / Hemianthus glomeratus
aquasabi.de/Hemianthus-glomeratus?ref=ls
Rotala rotundifolia “Singapore Blood Red”
aquasabi.de/Rotala-rotundifolia-Singapore-Blood-Red?ref=ls
━━━━━━━━━━━━━━━━━━━━━━
🛠️ Equipment used
UNS Dual All-In-One Cube Aquarium
aquasabi.de/UNS-Dual-All-In-One-Cube?ref=ls
Skylight FOQAL WRGB LED
garnelen-guemmer.de/skylight-foqal-wrgb–aquarium-led
UNS Strata Seiryu Stone Hardscape
aquasabi.de/UNS-Strata-Seiryu-Stone?ref=ls
Oase BioCliff Filter Media
aquasabi.de/Oase-BioCliff?ref=ls
Mesh Bags
amzn.to/4eGSOUN
Tropica Aquarium Soil
aquasabi.de/Tropica-Aquarium-Soil?ref=ls
Tropica Aquarium Soil Powder
aquasabi.de/Tropica-Aquarium-Soil-Powder?ref=ls
Pachi Aquarium XL Sand Flattener
https://pachiaquarium.at/products/xl-sand-flattener
AQUARIO Neo CO₂ Diffusor Curved Tiny
aquasabi.de/AQUARIO-Neo-CO2-Diffusor-Curved-Tiny?ref=ls
Chihiros CO₂ Regulator Mate
aquasabi.de/Chihiros-CO2-Druckminderer-Mate?ref=ls
ARKA Nite Out II
aquasabi.de/ARKA-Nite-Out-II?ref=ls
ARKA Special Blend
aquasabi.de/ARKA-Special-Blend?ref=ls
APT Zero Fertilizer
aquasabi.de/2HR-Aquarist-APT-1-Zero?ref=ls
or with 12% discount directly from 2Hr Aquarist:
2hraquarist.com/kulvni
(No discount code needed 😉)
━━━━━━━━━━━━━━━━━━━━━━
instagram.com/juri_js
#Aquascaping #AquariumPlants #PlantedAquarium #CO2 #Aquascape #NatureAquarium
