水草情迷

My friend ask me that can the colourful oxygen 'pig'(tablet for raising small fish in a jar) really release oxygen and can provide such vital need to fish?
I don't know how to answer him!
Anyone know?

I am curious to know too!!
But i really doubt it will release O2, my suspect is it is some kind of resin that absorb the toxic ammonia. I think ammonia poisoning is more serious in such small space, with not nitrifying bacteria to break down fish waste.

氧氣珠唔係用來裝飾咋咩?
我試過以前未玩草時用過
都以為可以放氧氣
but有一晚個氣pump壞左...d魚全部游晒上面
好采發覺得早....
吾..我諗睇來好似冇咩用

Actually, I have the same rationale with you because the pressure inside the jar(sealed or covered) will kill the fish shortly if it generate gas state O2!

Emil Fong,
I think u have given us the answer la

"oxdiator" 就真係可以放養氣la.....氧氣珠真係裝飾o架ja

奸商奸商!:n 咁oxidator係mood家科wa?係咪一部机泥?

Poor fish!! Innocent people keeping jar fish are actually torturing the fish.
I always heard 奸商 telling people: "must use
氧氣珠, good for fish ar". Then if people ask: "why my fish die in the jar?" They will said: "your 氧氣珠 expired, u need to get new one"!!! They even sell special food for the jar fish too!

"oxidator" 係可以放氧氣, 不過幾日就玩完......適合從外國訂魚用