Medium Gumnuts Pods (12 Pack)

A staple among blackwater aquascapers and shrimp breeders across Southeast Asia, Castle Dawn Aquatics Gumnut Pods are a favourite natural botanical for creating authentic, forest-floor-style blackwater environments. Their compact shape and textured surface make them ideal hiding spots for shrimplets and small fish, while also serving as natural spawning caves in nano and biotope aquariums.

These pods release high levels of beneficial tannins, gently softening the water and enriching your aquarium with humic substances that help maintain healthy conditions for Betta, shrimp, and other softwater species.

Tannins Released: High

All our botanicals are organically sourced, free from harmful pesticides and naturally sun-dried without the use of chemicals.

Key Features and Important Notes:

• What’s Included:
   1 × Pack of Gumnut Pods
  ⚠️ For aquarium use only – not for human consumption.
• Average Size:
  2.5–4.5 cm (0.98–1.77 inches)
• Source:
  Southeast Asia
• Flora:
  Eucalyptus
• Natural Habitat Effect:
  Mimics a forest riverbed when scattered among leaf litter, adding realism and depth to your blackwater aquascape.
• Tannin Release:
  High tannin output helps lower pH and adds a soft amber tint to aquarium water.
• Biofilm Development:
  Encourages the growth of beneficial biofilm, a natural food source for shrimp, plecos, and bottom feeders.
• Breeding Support:
  Provides small hiding and spawning spaces for fish fry and shrimplets.
• Preparation:
  Boil for 60 minutes, then soak in cold water overnight before placing in your aquarium.
• Organic & Safe:
  Organically sourced, naturally sun-dried, and free from pesticides and harmful chemicals.
• Natural Variation:
  Colour, shape, and size vary from piece to piece due to natural growth.
• Conservation Support:
  Part of the Wild Betta Rescue Programme – your purchase helps support conservation efforts across Southeast Asia.