水草情迷

真係會爆的, 我試過啦, 標晒d酵母液出來

咁爆的威力有幾大呀！有無危險性架？

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http://www.leoaqua.com/phpBB2/

會唔會用個T頭分兩條氣喉，一條縛去細化器，一條就由佢唔縛野，咁熄燈後就關左縛細化器個條喉而開唔縛個條，等D氣在空氣中消散。

I let my diy co2 running all night.
Have been using that for nearly 3 years, no problem
with fish.
I think the reason is that diy co2 seldom produce too much co2 to the extent that it overdose ur tank.

I should also add that i use two 2L yeast bottle for my 30" tank. The two bottles are connected by a T joint. I replace one bottle at beginning of month, the other one at middle of month.(but each bottle lasted one month)
In this way i maintain a more regular supply. I also use a co2
diffuser ($45) for my setup.
I Leave them on all night, still no problem with fish died from co2 poisoning.

Just my experience...