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Do my angelfish need an airstone when I have a hang-on the back filter with a strong current?
I have an Aqua Clear 300 on a 30 gallon tank. I have two angels and some cat cories. I noticed that the angels aren’t crazy about my hydor bubbler. I’m wondering, because of their flowing fins and that they’re slowing moving, they don’t care for that much water agitation? The is a fair amount already from the filter. Should I turn off the bubbler?