
I used these stones for my 5 gallon Pea puffer tank and they look great.

They aren't disrupted by the gravel vac because they are decently heavy and they are smooth so they arent able to cause injury to my fish. And they also look natural.

πΎ Zoo Med Excavator Clay Burrowing Substrate, 20 lb - 26406 Laboratories 690108
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πͺ¨ CJGQ Black Pebbles for Plants 7lb - Bulk Bag of Aquarium Gravel 1-1.5 inch - Decorative Polished Stone for Fish Tanks - River Rocks
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π Enhance Your Aquatic Habitat with Pisces Midnight Pearl Aquarium Gravel!
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