fishfanatic
Aquarium Advice Addict
- Joined
- Apr 6, 2011
- Messages
- 2,038
I am in the process of taking down a tank, cleaning it up and putting it storage. This tank has had this strange build up for a few months it is only around the top 6 inches of the tank, I was unable to clean it without the aid of chemicals. Now that there are no fish I have tried vinegar and a razor blade I have also tried pot scrubbers. This stuff is just not coming off! Is there a household cleaner I could use? How will I be certain it is fish safe after washing out?