candrews999
Fish Fanatic
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- Apr 2, 2018
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I've got a mix at the minute some live and some plastic.With a tank pH below 7, items made of calcium carbonate should do the trick. This means coral - whole or crushed - limestone/tufa rock and even shells. With a 55 litre tank you probably don't have an external filter, and those are the best place to put a bag of crushed coral, so perhaps a chunk of limestone or tufa, or even a piece of coral. I would only use bicarb as a last resort.
Do you intend having live plants in the tank?
The tank ph is over 7
Thanks
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