該魚友過去以來，一直被「魚缸內的水，怎老是霧霧的？」所困擾，為提高魚缸水的清澈度，幾乎是每星期清洗海棉、換水，經過一星期後，海棉的表面又是一層厚厚的污垢、水又「起霧」了。
上部過濾器，因具有架設裝置容易、清洗方便等優點，因此，採用人數最多、使用率最高，在第一層物理過濾過層，幾乎會使用白色海棉做為阻擋污垢白棉孔隙較大，只能阻擋顆粒、尺寸較大的污垢，對微小污垢的阻擋性較大，容易讓這些污垢再度回流至魚缸，魚缸內看起來「霧霧的」，就是這些細微污垢在水中漂浮所造成的。若要減少霧霧」現象，就必需要提高白棉阻擋細小污垢的阻擋性；白棉體間的孔隙，阻擋污垢繼續往下流動，但也被污垢不斷地累積而堵住，孔隙會愈來愈小，造成水無法穿透，甚至，會形成過濾盒淹水、溢水情形。
使用一段時間後，雖然，白棉可清洗再使用，但這些長期累積的污垢早已滲入棉體間的孔隙，恐怕難以完全洗淨，因白棉價格並不高、取得容易，許多魚友會視為消耗品，將白棉丟棄換新，但白棉被丟棄，原附著在白棉體間的益菌群也會甚間消失！
許多採用裸缸飼養的魚友，因魚缸底部缺乏砂石層，所有培菌及穩定益菌群工作，都必須仰賴過濾器中的濾材，雖然過濾器中會放入其它濾材作為培菌及提供益菌群附著使用，但其它培菌類的濾材也會受到細微污垢不斷地累積，培菌及提供益菌群附著的功效會逐漸降低，甚至，會招來白線蟲、孓孓、滋生藻類...等。
第一層白棉受到注水管注水及注水方式不同所影響，在受到注水處會因污垢不斷累積，形成「小山丘污垢」，而未受到注水處，會出現「潔白」甚至完好如新的黑白強烈對比畫面，不僅造成浪費，更讓培菌效果大打折扣！
The water in aquarium tank always not clear, there are too many small dirt in water, because the sponge unable to more effectively block dirt. this fish friend change water and change new sponge every week, we bserve the dirt on surface of sponge, it is very dirty, water unable to smooth penetrate in sponge pores, water be blocked by lot of dirt on surface of sponge.
Because sponge is not easy to clean completely, it is cheap, many fish friends think sponge is a consumable in aquarium, this fish friend change new sponge every week, When the sponge is dropped, number of bacteria in the tank will be substantial reduction.
Many fish friend have no gravel layer in bottom of the tank, all of bacterial attachment must rely on the filter medium, but the filter will be constantly accumulate dirt and clogging, the filter effect will be gradually reduced, even cause white nematodes, relic, algae ... etc. in filter box.
The first layer of white sponge be affected differently from water tube type and water jet mode, below and around the water column will appear many dirt hills, without water injection same as clean sponger, clean and dirt on surface of sponge, this is a very strong contrast, sponge filter effects can not be exerted fully.
一、改造前狀況： Transformation of the former situation
The water always not clear, when sponge be washed after 1 week, there are many dirt on surface of sponge, this fish friend change new sponge every week.
2.該魚友養魚時間並不長，幾乎所有養魚常識幾乎來自網路或水族館人員告知，長久下來，造成「有放入硝化菌液或粉，魚缸內的水不就會乾淨了？」錯誤的認知。這是非常嚴重的錯解，硝化菌群主要作用在將劇毒型的氨氣，先分解為亞硝酸鹽，再分解為硝酸鹽，降低水中毒素含量，並非是分解型益菌群，是無法讓水質清澈。
Many fish friends thinks nitrifying bacteria can make water more clear, this is a serious misconception, nitrifying bacteria is not decomposing beneficial bacteria, it will unable to make water more clear.
3.原魚友過濾器規劃設計5層過濾盒中，有2層負責阻擋污垢的物理過濾，在培菌生化過濾，則有3層過濾盒，唯獨缺少淨化水質的化學過濾。
There are 5 layers in this filter system, 2 layers belong barrier dirt filter. 3 layers are cultivate bacteria filter, there is no purify water filter.
4.裸缸飼養，主要益菌群附著集中在過濾槽中。當水中有機污垢量過多，水酸化速度較快。
No bottom sand aquarium tank, there is little number of bacteria.
在進行過濾器改造計畫前，建議先進行逐漸分次、逐漸進行局部調整與修正，包括：1.加裝紗窗網。2.放入木碳。3.魚缸底部鋪設珊瑚底砂。
Before filter transformation plan, it is recommended to be graded gradually, partial gradual adjustment and correction, including:
1.Installation screens net.
2.Input charcoal.
3.Laying bottom of coral sand.
（一）、加裝紗窗網，阻隔較大尺寸污垢 Laying mesh screens, prevent more large size dirt on the surface of sponge
Laying mesh screens above first leave sponge, large dirt be prevented by mesh screens, it will prevent more dirt on the surface of sponge directly, it will reduce to renewal the amount of sponge and extend the use of time.
（二）、放入木炭，提高水質淨化功效 Input charcoal, it can improve the effectiveness of water purification
原有5層的過濾系統中，獨缺淨水水質的化學過濾層，放入較多的烤肉用木炭取代活性碳，提高水質淨化功效。
The filter system, lack of a chemical filter, we input lot of charcoal to increase the effectiveness of water purification.
（三）、鋪設珊瑚底砂砂層 Laying coral bottom sand
雖然，陸續經過幾次局部調整與修正後，水質狀況稍有改善，但是，水仍是「霧霧的」，因此，決定進行過濾器改造，試圖，讓水更為清澈、降低水體間的細微污垢量、延長換水時間、減少海棉更新次數、增加水中益菌群種類及數量。
The purpose of laying coral bottom sand, it will increase the number of beneficial bacteria in the aquarium tank, and slow down the speed of water soured, too.
二、設備介紹： Equipment
魚缸尺寸 Size：2.5尺魚缸，75x45x45cm
水位高度/水容量（公升 Liter）：Water height / capacity：75x40x45cm，135 L
過濾器型式 Type：上部過濾器 upper filter
濾盒數量 Filter box：橫1x5層，共5個（每個29x16x7cm） 5 boxes （each box size：29x16x7cm）
魚隻數量 Fish：共8尾 8 fish
在調整更新前，先進行A階段實驗觀察，該階段又進行A1與A2，期間進行1次清洗海棉，觀察第一層海棉表面受污染程度。
Stage 1：
There are A1 ＆ A2 experiment in stage 1, it will observe the sponge surface contamination. After A1 (3 days to A2), the sponge have lot of dirt on surface.
三、準備改造 Ready to change new
（一）、海棉表面污垢 The dirt on sponge surface
濾盒1 Filter Box 1
（二）、改造前測量水質反應 Measure water quality response before change new
為何T.D.S.值高達1,181？ Why T.D.S. value up to 1181?
這次檢測多項水質反應，都達到預期效果，唯有T.D.S.值高達1,181，其原因，主要是受到擺放木碳影響所導致，由於，木碳堆中仍存在許多木碳削與木碳粉，這樣會使得T.D.S.數值很高，但從改裝前與後比較，改裝調整後的水清澈很多，沒有再出現以前濁水、水面很很多泡泡情況。只要幾天後，木碳削與木碳粉自然沉澱後，T.D.S.值就會降低。
A number of water quality inspection and checking, major results have to achieve the desired results but only T.D.S. value, the value-result is 1,181, Why T.D.S. is 1,181? this is placed lot charcoal in the filter box, there are many fine slag and charcoal powder in water, Compared with before and after modification, After the adjustment of the water become more clear without turbidity, no bubbles on water-surface, after several days, After those fine slag and charcoal powder after precipitation, the value of T.D.S. will be reduce greatly.
NH3值：0
NO3值：0
四、調整更新 Update ＆ adjustment
（一）、改造更新後 After update ＆ adjustment
（二）、安裝後1小時測量水質反應： Measure water reaction after 1 hour
五、檢測工作： Inspection work
經過一星期後，在不換水、維持原餵養下，觀察各層過濾盒的狀況。 After 7 days, no change water and keep feeding.
（一）、檢測點1 Inspection work 1：
觀察各層棉體表面污染情況 Observed each layer sponge surface contamination
濾盒1 Filter Box 1
在第三層濾盒中放入羊毛絨，若第一層過濾海棉能有效阻擋污垢，羊毛絨表面污垢就會減少，待安裝後一星期後，再觀察羊毛絨表面受污染情況。 It will be observed the soft sponge surface contamination after 1 week.
各項水質檢測結果 Checking results of water quality
六、調整改造預期效果： Expected result
這次調整改造的重點，在於： Transformation priorities, including:
（一）、水質清澈 Water clear
調整改造後，因第一層海棉大幅提高阻擋污垢功效，加上鋪設底砂，增加水體中分解菌群數量，魚缸的水變得相當清澈，過去那種「霧霧」的情況不再出現！
（二）、減少清洗及更新海棉次數 Reduce cleaning and updating sponge
[mini high efficient cleaning filter sponge] have special structure and materials, it can prevent more bait, reduce the times of cleaning, loss of large number of beneficial bacteria, and buy less sponge expenses.
（三）、減輕降低魚缸重量壓 Reduce the weight pressure of tank
調整改造後，完全不使用原使用的陶瓷環，培菌部份分散在多效除垢培菌棉、淨水培菌包、木碳及羊毛絨...等其它濾材，大幅降低石材類濾材的重量壓。
為何要加裝紗窗網、洗衣袋呢？ Why installation mesh screens or laundry bag above first layer sponge?
．過濾器改造計畫（四） Reconstruction filter 4
．過濾器改造計畫（三） Reconstruction filter 3
．過濾器改造計畫（二） Reconstruction filter 2
．過濾器改造計畫（一） Reconstruction filter 1
