My Crappie and Bluegill fish tank

[Dementedfish]

If anyone is interested in fish or fish aquariums, I just finished setting up my bluegill and crappie tank and fed them some goldfish. Check it out:

Bluegill and Crappie vs Goldfish: Fish Tank feeding frenzy! - YouTube

 

[ElectroBoy]

Very beautiful aquarium . You did your best to create such an incredible scenario . Surely you put a lot of time and effort in the creation of this natural masterpiece. I would recommend that you complement your aquarium with a unique living rock https://www.arcreef.com from the ocean floor that was part of the reef. It will not only have a decorative purpose but also has a good effect on water quality and acts as a natural water purifier .

Can that rock be used in a freshwater aquarium like this?