Skip to product information
1 of 2

Liquid Gardens Alder Cones 25pk

Liquid Gardens Alder Cones 25pk

Regular price Login to see price
Regular price Login to see price Sale price Login to see price
Sale Sold out
  1. Natural Benefits for your Aquarium Inhabitants
  • Natural Tannins Release
  • Natural Shelter and Food
  • Aesthetic Appeal


Why Use Alder Cones in Your Freshwater Aquarium?

Natural Tannins Release: Alder cones release tannins into the water when they decompose. These tannins can impart a slight tea-like color to the water, which can create a natural blackwater environment reminiscent of some tropical aquatic habitats. This can be aesthetically pleasing and simulate the native environment of certain fish species.

Anti-fungal and Anti-bacterial Properties: The tannins released by alder cones are believed to possess anti-bacterial and anti-fungal properties. This can be particularly beneficial for promoting the health of fish and shrimp.

Natural Shelter and Food: As they break down, alder cones can serve as a food source for some small aquatic invertebrates like shrimp and certain types of snails. The biofilm that grows on decomposing cones is a delicacy for many shrimp species.

Aesthetic Appeal: Aside from the benefits to water quality and fish health, alder cones also add a unique and natural decorative element to an aquarium, especially in setups aiming for a biotope or natural appearance.




Once placed in an aquarium, the cones will float until becoming waterlogged over the course of 1 to 2 days, and they will then begin to sink. Alder cones can be replaced every 3 to 4 weeks or left to be eaten by aquatic animals over time as they decay.

NOTE: Alder cones leach healthy tannins into the water, which can cause slight discoloration. This discoloration is healthy and not a sign of polluted water.

View full details