Brightwell Aquatics MicroBacter CWM

Brightwell Aquatics MicroBacter CWM

Overview

Seed and stabilize the biofilter in cold-water marine systems. MicroBacter CWM delivers a balanced consortium of beneficial bacteria selected for temperate salinities and temperatures, helping quickly convert toxic ammonia and nitrite, reduce organics, and keep surfaces cleaner in public-style displays, temperate reef tanks, kelp/macroalgae systems, and chilled marine aquaria.

Key Features

• Built for cold water (CWM) – Optimized for the microbial demands of temperate marine systems (commonly ~50–65°F / 10–18°C).

• Complete bioculture – Supports nitrification, aids in the breakdown of dissolved/particulate organics, and promotes a resilient biofilm on rock, sand, and media.

• Speeds stabilization – Helps shorten the “new tank” phase and improves recovery after filter maintenance, new livestock, or carbon dosing changes.

• Reef/invert safe – Contains no copper or harsh preservatives; suitable for fish, inverts, and macroalgae when used as directed.

• Versatile use – For initial cycling, post-cleaning re-seeding, and ongoing water-clarity/cleanliness programs.

Directions (General)

• New systems: Shake well. Turn UV/ozone off and reduce heavy skimming for 24–48 hrs after each dose. Dose per label based on total system volume for the first 7–14 days, testing ammonia, nitrite, and nitrate.

• Established systems: Dose per label weekly or after water changes, media swaps, or livestock additions.

• Maintain strong aeration/oxygenation. Never overdose ammonia sources when fishless cycling. Always follow the bottle’s instructions.

Best Practices (Temperate Marine)

• Keep temperature stable within your livestock’s target range (many temperate setups: 50–65°F / 10–18°C).

• Maintain salinity around 1.023–1.026 SG and consistent alkalinity/pH suitable for marine life.

• Rinse or replace mechanical media regularly to prevent clogging that starves biofilms of flow/oxygen.

• Use quality test kits and log parameters during the first weeks.

Compatibility

• Safe with protein skimmers, activated carbon, GFO/PO4 media, and macroalgae.

• Temporarily disable UV/ozone for 24–48 hrs after dosing to allow colonization.

• Compatible with dry rock, aragonite sands, ceramic media, and sumps/refugia common to temperate displays.

Product Specifications

• Format: Liquid bioculture (live, non-pathogenic bacteria)

• Use Case: Cycling new temperate marine aquariums; ongoing biological maintenance; post-maintenance re-seeding

• System Types: Temperate marine fish-only, temperate reef/invert, macroalgae/kelp displays, chilled public-aquarium style systems

• Storage: Keep sealed, cool, and out of direct light. Do not freeze.

• Safety: For aquarium use only. Keep out of reach of children and pets.