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Ceratophyllum demersum
Care profile for Hornwort: low light, none CO₂, beginner difficulty.
Any trimmed stem section floats and grows on its own.
Aquarium Soil Substrate
Canister Filter
Protein Skimmer
Hang-On-Back Filter
Hair Algae
Long green strands coat plants, hardscape and glass. Common in young or bright tanks.
Brown Diatom Algae
A dusty brown coating on glass, plants and decor, common in new tanks.
Plant Nutrient Deficiency
Leaves yellow, develop pinholes or new growth looks twisted and stunted.
Common plant problems
Lighting calculator
CO₂ estimator
Dosing calculator
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