Tunze Pump Rock Housings.

birdman204

New member
Do these things need to be "cured"(limestone, leaching compounds, not dead animals :D ), or can they be put right into an established aquarium?
They smell funny out of the box, My guess is curing. If so, what is the process.
TYIA
-Ryan-
 
I don't think so, they are made in France but the material is the same ceramic type material.
 
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