几十年来，您需要在这种爱好中有一种很好的幽默感才能摆脱硝酸盐，但现在被告知要服用它！以下是几年过去了的一些天然过滤器，时尚和营养控制方法。
活岩
岩石是钙质的岩石从海洋生活and teaming with the sorts of desirable algae, beneficial bacteria, and tiny critters that we once all sought to introduce to our reef tanks.好现场岩石有一个开放的结构made up of compressed coral skeletons and layers of calcareous algae, and used to be collected from the clean, clear waters around Fiji.
一块好的活岩实际上是一个迷你礁石本身，然后将其放在坦克中，将其放在一夜之间，第二天，您可以看到生命爬了下来并播种了坦克的每个角落。
The Berlin System utilized a combination of bright lighting, a protein skimmer, powerheads, and live rock, many principles of which we all still use to this day. But the quality of rock dwindled, wild rock collection areas got shut down, and when it brought unwanted hitchhikers with it and wasn’t the nitrate-reducing miracle we were all told it was, meant that we slowly moved on to dry rock, mined rock, or hand made ceramic alternatives.
Looking back, we miss the life it brought, but we don’t miss the curing, the pests or the wall-to-wall rock piles.
Plenums and Deep Sand Beds
In the 1990s to early 2000s the reefing hobby was obsessed with living sand beds to solve all our nitrate problems, and many a display tank was adorned with a plenum or deep sand bed of some 4” deep or deeper. Live rock was an essential part of any reef aquarium back then, but we craved even more biology in the tank to offer us a more complete Nitrogen Cycle as well as millions of tiny critters to help process detritus on the sand.
Aragonite是（现在仍然是）选择额外缓冲能力的首选武器，在某些情况下，只有数百磅的使用物被用来创建缺氧的砂层深处，从而在此造成了减少硝酸盐的细菌的发展并开始工作。
Substrate sifting gobies were a no-no with deep sand beds and plenums because they would turn over the still sand bed and plunder it of its tiny invertebrates. Live Sand was born out of that craze, harnessing live bacteria harvested on substrates harvested from the oceans, only these days we keep our sand beds much thinner at just 1” deep, vacuum them regularly, or remove them altogether.
沸石
沸石is still sold by many high-end reef product companies and its use was championed as part of theUltra Low Nutrient Systems大约15年前从德国出来。ULNS was all about low nitrogen levels, produced by filtering through Zeolite to remove the ammonia that could go on to become nitrate, and then further lowered by probiotics and a carbon source to really scour the water (and the coral’s zooxanthellae,) to produce the palest or pastel colors in SPS corals.
快进，我们现在意识到有一些硝酸盐和磷酸盐为珊瑚色上色并帮助它们成长的好处，因此，尽管仍然可以广泛使用，但我们目前不认识任何仍在使用它的人。
气泡擦洗
这种热潮似乎很快就消失了，但是大约五年前，在网上有很多聊天，在商店里谈论泡泡擦洗。将返回泵旁边的一台空气石连接起来，让其将微泡吹入您的水箱中，它们会粘在碎屑和蓝细菌上，然后再上升，沿着溢出掉下来，并被机械过滤捕获。
很多人都尝试过并取得了良好的效果，但其主要死亡原因可能是没有人能真正将这种DIY技术商业化，现在，由于卫生的卫生更好roller mats和开放的岩石结构，无论如何，我们的坦克运转得更加干净。
藻类藻床的藻床
We still have the magazine adverts from the last century, and mud beds combined with Caulerpa promised a lot! The mud was a take on the Deep Sand Bed idea mentioned above, only even finer sediments could enable nitrate reduction in a much shallower bed, fortified with a whole host of trace elements in the mud and a great place for microbes and tiny invertebrates to live in.
泥床是原始的“避难所”，小动物可以在Mulm上嚼，然后乘以免费的活食物，然后溢出到主罐中。Caulerpa会植入营养的底物，在24小时的照明周期中吸收二氧化碳，并抽出氧气，并且还会随着硝酸盐和磷酸盐的含量而施肥。
It was a revolutionary method with the macroalgae part and benefits still very much in use to this day. The skimmer-less claims didn’t do much for the protein skimmer faithful however, many converting to hybrid mud/skimmer methodology, and invasive Caulerpa became established in main displays as well as natural waterways, making way to Chaetomorpha, which didn’t need the mud for a foothold.
ICP testing已经带来了一些泥土品牌的执行停留，直到现在，它被添加到主要水箱中，作为营养素，元素和细菌的增强，并且不经常像旧时代那样点亮和种植。
