75-gallon FOWLR is not so full anymore now while I transfer down to my basement to make room for my 125-125 build.
Citric acid or Bar Keeper's Friend cleaner (oxalic acid) work well, though I have only personal experience with glass tanks and not acrylic. Citric acid can be added to tap water to fill the tank to soak with water flow. Bar Keeper's Friend works well on a sponge for scrubbing. Using a soft sponge should keep from scratching the acrylic.Just brought this home last night. Not much to look at now but give me a couple weeks. What's the best at removing stubborn coralline algae on acrylic?
+1, though I've read that citric acid is more effective and less harmful to equipment than vinegar (acetic acid).soak in water with vinegar with powerheads going. Gee, I'm not the only one who feeds cats on tables! Lol's. Cute kitties!