Ha ha ha , don't think that owner which he told me all those words which is two years before and he still didn't change .^^. so hope you keep in surf often in ph 84 you learn all things which is free .

Ha ha , To saw wood is experience .I am an ex-student of npust department of wood industry and have been sawing wood for few years ,what you say to saw wood in a straight line for about 90 degree is a very difficult task , we human are not machine , but fortunately machine are created by us...

I am afraid that you said co2 is mistken for o2. mostly the fish shop use is o2 and not co2 .You can shift it , but take care that you don't wash the gravel . Hope you have a sucessful journey .

請問大大pl燈是否可養軟體