These are traces of fire clay brick of the kiln. It isn’t harmful. Just wipe it off or brush, should it visually disturb.
ANGEBOTE
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Front Entrance Cave Catfish Cave 15x11x51 cm dark brown with small defect Bisher bei uns
65,90 €Original price was: 65,90 €.49,00 €Current price is: 49,00 €. -
AquaKeramik plant bridge made of clay for aquarium 24 cm 'Vintage' Bisher bei uns
12,90 €Original price was: 12,90 €.8,90 €Current price is: 8,90 €. -
Clay discus spawning cone with gutter with defect No. 6 (Kopie) Bisher bei uns
18,99 €Original price was: 18,99 €.12,99 €Current price is: 12,99 €. -
AquaKeramik igloo cave clay Ø 25 cm gate entrance dark brown No. D31 (Kopie) (Kopie) Bisher bei uns
18,99 €Original price was: 18,99 €.15,99 €Current price is: 15,99 €. -
Catfish tube clay tube 2-2.5 x 9-10 cm terracotta Bisher bei uns
3,20 €Original price was: 3,20 €.2,00 €Current price is: 2,00 €.