cancun
Aquarium Advice Apprentice
- Joined
- Nov 3, 2013
- Messages
- 49
Hi all! What is the BEST rule of thumb for how often and how much to do water changes? I have a 29 gallon biocube....nitrites are 0....ammonia is 0....but nitrates fluctuate between 10 and 40 ppm....started out doing monthly 20% wc...then 10% every other week. ...now 10% every week to lower nitrates. ..but read articles that it may not be good for yhe tank to do so much water at once?? Any advice or info would be great! 8)