A grower gets dark green/black algal scum on repotted Drosera and flytraps. Expert: mostly cosmetic; problematic only for tiny seedlings. Post-planting: only scraping works – chemicals kill plants. Pre-planting options: pour boiling water on soil surface to kill spores; quaternary ammonium disinfectants (e.g., Physan 20) – treat, wait 24 hrs, plant; soak and rinse media to remove excess organics feeding algae.
Algae vs. Reviving Moss in Carnivorous Plant Pots
Algae Control in Aldrovanda Tubs: Barley Straw, Not Chemicals
Algae on Drosera Rotundifolia Seedlings: Fungus Risk and Outdoor Fix
Algae on Sarracenia Seedlings: Prevention and Remediation
Algae in Carnivorous Plant Ponds: Physical Removal, Not Chemicals
Managing Algae and Fungus in Seedling Terrariums and Bog Gardens
Algae on Sundew Seedlings: Prevention, Peroxide Treatment, and Humidity Dome Use
Algae Control Questions: Expert Referral Needed
Getting an Irrigator's License: Quality Parts, Proper Design, Fair Pricing
Rescuing Rootless Orchids from Big-Box Store Moss Pots
Controlling Algae in Sarracenia Water Trays: Safe Methods
Peace Lily Flower Fading and Repotting Mistakes
Pesticide Timing on Strawberries: Pre-Bloom Sprays and Fruit Safety
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