Came back from an extended weekend and there is now rust!
A few weeks ago, I cobbled together a 20 gallon saltwater aquarium from bits and bobs I found at home. Into the 20 gallon mix was added about 7 lbs of live rock, 10 or so pounds of bass rock and about a 5 inch deep play sand bed. Circulation is provided by a AC150 with media and a second power head. (I will be getting a bigger, 2nd one soon.) I seeded the tank with a dead freshwater fish that had met an untimely end in my son's 55 gallon Freshwater. On returning home from the weekend -- other than the live rock there are no inhabitants in the tank bigger than a pencil stub -- I came in to find the whole front of the tank, the base rock, the sand in front, and much of the live rock covered in a rust coloured looking algae looking something. I haven't run many tests but ammonia barely registers and salinity is correct. What should I do? Clean it up? Let it run its course? Fool around with circulation and or lighting? All advice appreciated. It ain't pretty. But as the only fish added was already dead I am not too bothered. Jeff
In theory there should be no difference between theory and practice. In practice, there is.