I've had two goldfish in a 29 gallon for a year and every thing has been normal. I moved and took about seven gallons to the new place. I tested every thing and it couldn't be better. I have a water softener in this new place and that's the only thing I can think might be causing this. Last week I took out around ten gallons and new filter and it never cleared up. I put in the stuff for new tanks that removes heavy metals etc. Today I completely drained it but didn't clean the gravel and so far it's still clear. What can I do to improve this water? My salt water tank is crystal clear. I've been doing this (fish) for eight years and never had this problem.
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