
Originally Posted by
vinz
If you don't want trouble with CO, then get carbon supplement such as Seachem Excel, or the alternative from Profito. Basically add a few ml every other day.
I suggest getting a filter that is over rated for your tank, if you don't mind spending a few tens more.
1. You can attach other devices in-line without worrying about drop in flow rate.
2. When you ever upgrade to a larger tank, you don't need to buy another filter... especially if you fork out the cash for a lasting quality brands.
3. Filter flow rates drop as filter media get clogged and equipment wear out.
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