Stan Z Posted January 3 Share Posted January 3 I have two tanks. A 29 galling with the fish and plants, and a 10 gal with on Chinese algae eater and lots of plants. The water in the 20 is normal but when I change water in the 10 it has a bluish color. Any reason I should know about? I use root tabs and liquid fert and add potassium. Link to comment Share on other sites More sharing options...
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