I only have a 60 gallon, but do water changes 3x a week.
Sent from my LG-MS770 using MonsterAquariaNetwork App
Sent from my LG-MS770 using MonsterAquariaNetwork App
The amount of waterchanges can vary greatly from tank to tank. Imo the ideal way to gauge this is to test your water. When your nitrates get high do a water change. Then when they get high again...do another water change. Build your routine around test results. As your fish get bigger this routine will need to be altered by either more frequent water changes or higher volume water changes. Either way this whole "I change my water once a month" "Well you need to do is 17 times a week like me" banter is useless.