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    • Everything from clay for the axolotl
    • Everything from clay for the fish
      • Front entrance caves
      • Side entrance caves
      • Catfish ceramic tubes
      • Igloo caves
      • Special caves for specialists
      • Tunnel for ornamental fish & invertebrates
      • Leaves & barks – Decoration & hiding places
      • PANTA RHEI© Clay branch caves
    • Crab& shrimp caves
    • Shrimp trunks
    • Planting aids
    • Feeding aids
    • EBO Premium Fish Food
    • SAK Fish feed & Shrimp feed
    • Leaves & Roots for Aquarium
      • Spiderwood
      • Alder wood caves
      • Indian almond – leaves & barks
      • Alder cones & Leaves – Walnut, Guava, Banana, Mulberry…
      • Cholla cactus wood
      • GrowScape planting mats
      • Teawood
      • Fruit capsules as hiding places
    • Technical things for aquarium
      • Free floating breeding boxes & Ziss Egg Tumbler – Fish & Shrimp Incubator
      • Air lifters & Pressure cells
      • Diffusors
      • Aquarium filters
      • Aquarium heaters
      • Aquaristic pumps
      • Spare Parts & Accessories
    • GRANOFLOUR® Natural sand – Aquarium sand made of pure hard rock
    • Slate caves
    • Water quaility & water plant care & fertilizer
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  • CATFISH BREEDING
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Home / FAQ / On some clay articles are white spots. What is it and is this harmful?

On some clay articles are white spots. What is it and is this harmful?

These are traces of fire clay brick of the kiln. It isn’t harmful. Just wipe it off or brush, should it visually disturb.

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