RE: water changes
Has it just been sitting? I have my make up water in a 55 gal drum in the garrage. I make about 45 gallons in it at a time which lasts me 2 W/C. At about 20 gal a month. But I have a pump in there to move the water around and keep it agitated and oxgenated. And have not had a problem (yet). I do check the salinity and top off if it needs it.
But if it's just been sitting there stagnant id dump it and mix up a new batch
Rob--
Don't belive in anything you can't break
I have nothing ! but I stayed in a Holiday Inn last night