Bioscape Phosphate Extraction Cubes - 85+ Uses for Aquarium Water Treatment | Remove Algae & Improve Water Quality for Fish Tanks & Ponds

Durable polyfiber cubes impregnated with an phosphate absorbing resin to reduce aquarium phosphate and keep algae growth in check.

Increase water quality and improve fish health by controlling phosphate levels due to decaying organic matter, overfeeding and lack of water changes.