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Old 11-02-2012, 06:19 PM   #12
schoolzoo
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As psr tof the displays in my room I have a 25 gallon fresh tropical tank - it has a few guppies, swords, mollies an angle fish and some submerged plants. The plants aren't doing very well. any suggestions?
I think that I would like to try a CO2 system, but know next to nothing about them. How much CO2 should I be adding? Will it affect the fish?
Any advise would be great.
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