Hi,
I have a 30 L cube tank with 4 guppies in it. One hang at back filter, fine gravel and one pvc pipe. No plant yet. I do a 10-15 % water change every 5 days. Do I need to clean the tank or anything in it ? If yes then what do I need to clean and how ?
I have a 30 L cube tank with 4 guppies in it. One hang at back filter, fine gravel and one pvc pipe. No plant yet. I do a 10-15 % water change every 5 days. Do I need to clean the tank or anything in it ? If yes then what do I need to clean and how ?

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