Brightwell Aquatics MicroBacter QuikCycl – Fishless Cycling Nutrient – 60 ml

Brightwell Aquatics MicroBacter QuikCycl – Fishless Cycling Nutrient (60 ml)

Kick off a clean, controlled nitrogen cycle—without risking livestock. MicroBacter QuikCycl provides precise ammonia-based nutrients for fishless cycling when paired with a live bacterial culture such as MicroBacter Start XLM/XLF. 🧪🌊🐠❌

What It Does

• Feeds nitrifying bacteria with a clean, measured ammonia source
• Designed for both marine and freshwater aquariums
• Pairs with MicroBacter Start XLM/XLF for fast, reliable cycling
• Promotes a strong biological filter before fish are added

Important Safety & Setup Notes

• Fishless only: Do not use in aquariums containing live fish, corals/plants, or invertebrates.
• No media that removes nutrients: Do not use carbon, GFO, or other phosphate removers until cycling is complete and 30 more days have passed.
• Use test kits daily for pH, ammonia, nitrite (and nitrate when indicated).
• Have adequate bio‑surface area (e.g., rock, filter media). Turn off skimmer/UV and remove fine filter socks during the initial phase.

Full Day‑by‑Day Dosing Guide (Days 1–9+)

• Day 1
  • Turn off skimmer & UV; remove fine mechanical filtration (e.g., socks).
  • Dechlorinate (treat chloramine/chlorine), then set salinity, pH/alkalinity, and temperature.
  • Dose a full start of QuikCycl at 4 drops per gallon (≈ 1 ml per 5 gal).
  • Test ammonia. Target is ~1–2 ppm total ammonia (NH₃ + NH₄⁺). Do not add more today even if your test reads low—the bacteria begin using it quickly.
  • Add live bacteria: MicroBacter Start XLM (marine) or XLF (freshwater) as directed.
• Day 2 – Measure and record pH, ammonia, nitrite.
• Day 3 – Measure and record pH, ammonia, nitrite.
• Day 4 – Measure pH, ammonia, nitrite. If either ammonia or nitrite is > 0.25 ppm, you may add more bacteria (not more QuikCycl).
• Day 5 – Measure and record pH, ammonia, nitrite.
• Day 6 – Measure pH, ammonia, nitrite. If either is > 0.25 ppm, you may add more bacteria (not more QuikCycl).
• Day 7
  • Measure pH, ammonia, nitrite.
  • If you used MicroBacter Start XLM/XLF and both ammonia = 0 and nitrite = 0, then test nitrate.
  • If nitrate ≥ 0.25 ppm, the aquarium is considered cycled.
  • If not yet at zero/≥0.25, continue to Day 8.
• Day 8 – Measure and record pH, ammonia, nitrite.
• Day 9 and subsequent days
  • Continue measuring pH, ammonia, nitrite.
  • When ammonia + nitrite = 0, test nitrate. If nitrate ≥ 0.25 ppm, the aquarium is cycled.
  • At completion: perform a 25% water change, then slowly begin adding hardy animals. Restart UV, skimmer, and mechanical filtration.

What’s Included

• 60 ml (2 oz) bottle of MicroBacter QuikCycl
• Dropper cap (≈ 20 drops = 1 ml)

More Information

Shop Related Cycle Products

• MicroBacter Start XLM – Live Bacterial Culture
• MicroBacter Start XLF – Live Bacterial Culture (FW)
• MicroBacter Clean – Post‑Cycle Water Quality Support