水草情迷

My tank water became milky two days ago, I changed 1/3 water this morning but the water is still milky tonight at 12:00 AM.

I also noticed that fish have white spots so I dosed medcine this morning.

May I know why the water became milky? Last Sunday I changed my original 2 X 24W PL to 2 x 24W T5HO, and added one "sink wood" too. Would these be the cause?

My tank is 18"L x 9"D X 16"H, the distance between the soil and T5 is about 16".

Thanks very much.

奶水成因係一些分解唔晒既蛋白質，換水作用唔大，換燈加沉木都唔關事。一個健康既缸會有兩大益菌存在：消化細菌同硝化細菌，消化細菌泛指那些可分解有機化合物的細菌，包括光合成細菌(psb)，導致蛋白質分解唔晒不外乎兩個原因，蛋白質標升、消化細菌量下降，前者多數係餵飼過量，後者多數係大清洗或者大換水。
如果你唔介意白濛濛唔好睇，乜都唔洗做，一個等字，唔好餵飼過量、唔好換水過量，就當冇事發生，細菌量自自然然會升翻，D水自自然然會清翻。
如果你想快D見效，市面上有消化菌賣，一般以乾菌形式出售，網友多會用Dupla乾菌(Baccies)，放入水中或濾桶中，等佢活化左，就會開工。亦都有現成psb活菌賣，不過活菌儲存期短，買之前都唔知擺左幾耐，比我就唔會買。