水草情迷

我的濾棉好多 廢物了~
是否係時候換呢 ??~
但睇過一些文章.......話舊的濾棉有硝化菌.....
so 我應做0的咩呢 ??~~~
pls answer my question ~thx

what 濾棉?
if white , replace by a new one
if blue, wash by fish tank water , then use again

thx very much ~~~

if i just have a (white棉), and 生物環~ because my 濾水 not too much space..., replace by a new one (white棉) or just wash by fish tank water , then use again?

(water in --> white棉 --> 生物環 --> water out)

thx~

硝化菌 in bio rings mainly , white cotton can be repalce or reuse ,as you like

o~ thx!