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Re: [APD] neglected tank
ok just a personal observation. I have on a few occasion over the last
several years of keeping freshwater planted tanks, had to do a bit of extra
cleaning to get a tank back into balance. This usually entailed removing
all of the flora and fauna, stirring up the substrate (old wooden spoons
retired from the kitchen work really well) and then draining, refilling and then
repeating this until the tank water was clear. Then i would refill the
tank with 25% water from other tanks and fresh clean water.
This was usually necessary when the fish population was just too high or
ferts and CO2 had been neglected or a compination of both.
But i never had a fish kill associated with the clean up, and usually never
even lost a single fish during this process. Certainly didn't see any
adverse reaction by the plants. This is a great time to clean off the really
bad leaves and do some creative re-arranging.
What i did see was a severe lack of any algae growth after such a clean up.
Of course, ferts and CO2 or Excel were done on a more regular basis, fish
population was reduced etc.
I always had tank water available from other tanks, but if the tank being
cleaned was of a reasonably small size, ie less than 75 gallons, a 32 gallon
trash can would hold plenty of tank water while the cleaning was done.
I was always of the opinion that you just could not do massive WC's without
endangering the fish. One day i was at the LFS and watched as a WC was
done in a 40 gallon tank which contained 6 big royal blue discus being
quarantined before sale. They took the water down to almost the top of their
dorsal fin, dumpen in some de-clorinator and filled the tank back up with tap
water. Since the fish were worth about $400 i guess that they were not
As long as the temp of the new water is pretty close, doesn't seem to
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