cjmdh Posted October 10, 2016 Share Posted October 10, 2016 I recently purchased a used complete setup that included a 120 gallon tank with dual Megaflow overflows. The back glass and overflows are really encrusted with coralline algae (see picture). My questions are: 1. How do you get the coralline off of the plastic overflows without tearing them up? 2. Do I really need to get it ALL off? 3. How do you get all the junk out of the space between the inner and main overflow sections? (see picture) I can buy a case of vinegar and let it soak for a while I guess. Any other suggestions? Mark Quote Link to comment Share on other sites More sharing options...
Ninjabeaver Posted October 10, 2016 Share Posted October 10, 2016 Personally I wouldn't attempt to clean too much of it, at least not too aggressively. The vinegar will really do a number on it especially if you let it soak for awhile. Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Omoluabi Posted October 10, 2016 Share Posted October 10, 2016 That is a beautiful tank Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
PowderBlue Posted October 10, 2016 Share Posted October 10, 2016 Coraline will just die when you put new water, rock, sand etc in. I wouldn't even mess with it much to be honest. As for that tricky spot between the overflow, let the tank soak with vinegar, for a while. I used spiral brush cleaners in my past after a soak and they worked very well. Amazon has them for cheap. Sent from my SM-G928V using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
cjmdh Posted October 10, 2016 Author Share Posted October 10, 2016 Thanks! Vinegar it is. I'll find some brushes to clean that space out. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
cjmdh Posted October 24, 2016 Author Share Posted October 24, 2016 Here is a before and after. I have 4 gallons of vinegar circulating now. Will add more. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
cjmdh Posted November 2, 2016 Author Share Posted November 2, 2016 (edited) Another update. 8 gallons of vinegar topped off with water, two heaters, and two power heads circulating for a week. This is the result. Pretty dang good! I'm glad I went the super clean route. This stuff flaked off in big nasty chunks. I don't know if it would have done the same thing in salt water, but glad I didn't take the chance. Sent from my iPhone using Tapatalk Edited November 2, 2016 by cjmdh Quote Link to comment Share on other sites More sharing options...
PowderBlue Posted November 2, 2016 Share Posted November 2, 2016 Looks almost brand new! Sent from my SM-G928V using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
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