Rocks are a nice addition to a fish tank. However, not all rocks can be used in an aquarium environment. Find out which rocks are safe and which are not.
Guide to aquarium wood - INJAF
Sand in Aquariums: Benefits of Using Sand in Your Fish Tank - PetHelpful
Symptoms Of Low pH In A Fish Tank
How to Add Rocks to An Aquarium - Aquarium Tidings
Can I put rocks I found in the river or pebbles I found on the sea into my aquarium? - Quora
Aquarium Rocks: Safe and Unsafe Rocks to Put in Fish Tanks, by Smartplanted
4 Aquarium Gravel Questions That Will Make Or Break Your Tank
Aquarium Safe Rocks? QUICK + EASY TEST
Aquarium Decor- Do's and Don'ts every aquarist should know - Bunnycart Blog
Water Quality Troubleshooting: Identifying Common Aquarium Problems
Are these lists true? If so, here's a safe/unsafe rock list for y'all lmao : r/Aquariums