nooboftanks
Aquarium Advice Regular
- Joined
- Aug 15, 2017
- Messages
- 51
I was recently offered a 37gal bio cube with live rock and filter media so how could I not take it! Like most used tanks it needs some deep cleaning but I’m having some trouble with what the previous owner called “calcium deposits” they are a deep red color and I’ve tried everything including spraying them with vinegar to get them to go away