水草情迷

12"x7"x7"
我整左枝 diy co2......咁應該噴幾多先夠 ?我驚太多.

我仲有個白痴問題想問...1缸水,
a)水中co2上升會令oxygen下降,vice versa???好似冇咩可能...
b)co2上升,同時oxygen都可上升??咁一缸水咪可以有勁多氧氣,又可以超多co2.....條魚會點?
.....我係文科人 ..haha

我買左矮珍珠周牛毛毯...
矮珍珠都唔係o係葉出泡....d泡o係我修剪過既橫枝度標出來

我咁諗, 假設個魚缸只可以容納 100 份氣體, 當 co2 佔了 70 份, 咁氧氣只可以有 30 份了. 所以才會 co2 上升, 氧會下降. 唔可以有 100 份 co2, 及 100 份氧.
當 co2 過多時, 魚仔吸唔到氧氣. 咁好像人咁樣. 太多 co2 會呼吸困難.

我的看法是：氧氣和二氧化碳都可以達到100份。不是互有漲跌的。一點拙見，請多指教。

>我的看法是：氧氣和二氧化碳都可以達到100份。不是互有漲跌的。一點拙見，請多指教。

True, saturation points for O2 and CO2 are "almost" independent. The main factor is tempeature.

>當 co2 過多時, 魚仔吸唔到氧氣. 咁好像人咁樣. 太多 co2 會呼吸困難.

CO2 escape from blood cell mainly by pressure different, if outside CO2 pressure increase, i.e. high ppm CO2, it will reduce amount of CO2 can be released from blood cell, but fish can adopt to this, however, when CO2 pressure inside a blood cell is close, equal or greater then outside O2 pressure, O2 will not be able to "push out" remaining CO2 in blood cell, the fish will 呼吸困難.

This shouldn't be a problem for a oxygen saturated tank. A CO2 injected tank with highlight (no point to have CO2 without highlight anyway) is possible to reach 600% oxygen saturation, and can remain well over 100% even during night time.

咁我又想問下：
若然無強光就唔需要加co2，那麼種陰性水草是不用加co2的嗎？
請指點！