Castle Dawn Aquatics

Large Raw Cinnamon Sapwood Curl Caves

Large Raw Cinnamon Sapwood Curl Caves - Main image
$20.05 $30.38 In stock

Category: Aquarium Aquatic Aquascaping Botanicals

Dawn Aquatics

Our large Cinnamon Sapwood Rolls are both practical and highly beneficial for blackwater aquariums. Sourced from true Ceylon cinnamon (Cinnamomum verum), this aquarium-safe cinnamon sapwood contains naturally occurring cinnamaldehyde, which is believed to help keep common aquarium diseases at bay due to its antibacterial properties.

During the natural drying process, the bark curls into beautiful rolls, creating outstanding natural shelters and spawning spots for shrimp, crayfish, and small fish. Cinnamon bark is particularly loved by freshwater shrimp and bottom-dwelling species, as it promotes natural foraging, grazing, and biofilm development.

COUMARIN FREE

Tannins Released: Medium

Common Question:
We are often asked whether cinnamon can cause a cinnamaldehyde overdose in aquariums. After boiling, the amount of cinnamaldehyde released is minimal. In addition, cinnamaldehyde has poor water solubility, making an overdose extremely unlikely. These factors are believed to result in just enough cinnamaldehyde being released to provide a gentle antibacterial benefit. This is why cinnamon has been used safely by shrimp keepers in parts of Southeast Asia for decades and is also believed to support shrimp growth and overall health.

Key Features and Important Notes:

  • What’s Included:
    – Approx. 330 g of Cinnamon Sapwood Rolls (around 5 pieces)
    ⚠️ For aquarium use only. Not for human consumption.
  • Average Size:
    15 cm (5.9 inches)
  • Average Weight:
    330 g per pack
    Approximately 5 pieces
  • Source:
    Sri Lanka
  • Flora:
    Cinnamomum verum
  • Shrimp Favourite:
    Freshwater shrimp actively graze on cinnamon bark, encouraging natural feeding behaviour.
  • Antibacterial Properties:
    Contains natural antibacterial compounds similar to Indian almond leaves.
  • Coumarin Free:
    Safe Ceylon cinnamon variety, suitable for aquarium use.
  • Natural Shelter:
    Curled bark creates ideal hiding and spawning spaces for shrimp, crayfish, and small fish.
  • Tannin Enrichment:
    Releases medium levels of beneficial tannins to support a healthy blackwater environment.
  • Dosage Guidance:
    Add approximately 10 g per 100 litres of aquarium water
    22 UK gallons
    26 US gallons
  • Preparation:
    Boil for 60 minutes, then soak in cold water overnight before adding to your aquarium.
  • Organic & Safe:
    Organically sourced, naturally sun-dried, ethanol-free, and free from pesticides or harmful chemicals.
  • Natural Variation:
    This is a natural product, therefore colour, shape, and size will vary from piece to piece.
  • Conservation Support:
    This product is part of our Wild Betta Rescue Program. By purchasing this item, you are helping us continue our conservation efforts throughout Southeast Asia.

Customer Reviews (4.6 / 5 · 5 reviews)

John B. ★★★★★

My apistogrammas are already exploring every curl and crevice of these cinnamon sapwood rolls, and the tannins they released tinted the water a gorgeous tea shade within a day. The large size makes them perfect for anchoring in the substrate without floating up.

Owen ★★★★★

Took a gamble on these for my blackwater setup and the curl shape is perfect—they stack nicely without trapping debris underneath. The sapwood released a gentle amber tint within the first day, and my pleco’s been grazing on the soft surface nonstop.

Timothy ★★★★★

My tetras are noticeably calmer and more colorful since I added these curls to the tank, and the wood sank right away without any soaking. The natural cinnamon bark gives off a gentle, earthy tint to the water that really mimics their native habitat.