Rough Night. Excel Treatment
I decided to try the Excel Algea treatment by double dosing the intial dose after a water change. I did 2x the directed dose - and also added my other ferts and water hardeners. I also add Barley Extract and Algae Fix (I have always added these....not sure it helps...but I know it hasnt hurt the fish).
After an hour my fish were in BAD shape. Tetras on the bottom of the tank, 1 dead cardinal, one dead rummynose. My Rainbows were gasping at the surface as well.
My plants were pearling like crazy...so my hope was that the O levels would come up and help out....but after a couple hours things seemed to be getting worse.
I did a 50% water change.....and within an hour the situation was back to bad. So I did ANOTHER 50% waterchange and lifted by spray bar to maximize surface agitation (I need to buy an airstone).
Anyway....things were better this morning...but not back to normal. I did not add any ferts, Excel, hardeners, or Algecide after the two water changes.
I will keep you posted.
Do you think this happened becuase I went from adding no Excel to a double dose? Did I shock my fish? Did the Excel react badly with my other additives?