11-22-2012, 07:03 AM
| || |
Well, I tried API Safe & Easy Spray. It can be used on the inside or outside of an aquarium (with heavy rinsing afterwards), according to the bottle. When I used it, it got off caked-on algae and water residue that had been there for years. I just had to scrub until my arm was sore.
It didn't seem to affect my fish, thankfully!