burkey wrote: actually water changes in a reef aqurium inbalances the stability therefore its best that the tank cycles the nitrates from ammonia to gas naturally.
thats the reason i say the berlin method is the only way to go for a reef aquarium properly.
the berlin method can remove nitrates!
doesnt matter what method you use for filtration! small and often water changes are always best especially in a reef tank, its not always about removing bad stuff , in a reef tank, its also about replenishing minerals etc that are essential to the health of corals and inverts. the salinty & pH of the water need to be kept more stable for corals etc and if you do regular small water changes, this prevents anyhting being used to the point where a large water change would change the water chemistry too much!.
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water changes are essential! They will remove unwanted chemicals and serve as a top-up to your mineral levels. They become more essential the smaller the system - and the smaller the system the more care has to be taken with these changes. They replace the trace elements in the system. These CAN be artifically added, but nothing is so reliable as water changes for topping them up. The berlin method (i use this myself) is primarily concerned with the replication of the natural in the unatural (i.e. the tank) - essentially based around the bacterial colonies within live rock being 'forced' to utalise organic compounds as these colonies are in anaerobic areas. Even the ocean has water changes. There called currents.
Water changes are VERY BAD! It means lugging huge tubs of water from my LFS to my car, then from my car to my tank, then lifting and pouring into my tank. Untill sweat drips from my forehead and makes the rest of the day somewhat of a recovery session. But apart from that I think they're quite good! Anyway carry on with the serious stuff now!