于 2004-01-20 02:25 Thank you very much nebula. Therefore at the moment I shouldn't put any fish in the tank and should wait for the N-cycle to finish first. And I need to take out the Phosphate sponge. For 用潛水頭將水流谷進喉底架(俗稱谷底),I am doing that at the moment but I find out there is blockage on it. That make the filter can't fill very well. I have took out the 喉底架 tonight and I think I will use a 沙缸 for filler my tank after chinese new year.