水草情迷

Hello
I successful made the DIY CO2 and bubble come out steady.
However, I discover some air leak out between the cap and the rubber tube. Can you guys tell me how you "seal" the bottle. Using hot rubber or what? Thanks a lot.

最好係熱溶膠同玻璃膠
不過我用超能膠一樣冇問題,兩邊都落.
黏左後,唔好咁心急,等佢全部乾曬至diy,咁就攪掂...
最難反而係控制co2嘅輸出量,初時超勁,過多一兩日就弱曬,要密D去調教出個平衡

用超能膠或乜膠物膠會令你個樽用完即棄
去五金舖買"士Lim"膠布啦!

Thanks a lot for the advise. I don't know why I fail on the hot glue. Anyway, tonite I will try to build a "bullet" proof sealed cap...... :-n01 :-n01

Actually, I have another problem. Currently I am using Tetra (jit jit) type CO2 set using the "bell" or CO2 chamber to diffuse CO2 in water. I saw the CO2 is really dissolves in water without creating any bubble. Each day I feed the bell twice.

However, over last 2 days, the Sera CO2 tester (long term tester) still show Blue which is not enough. Therefore I add a DIY set. Of course, leakage is another problem.

My tank is just a small 16L curve shape one. I place my bell near the power head so that the current will flow on top of the bell in order to speed up the dissolve of CO2.

But tester still show blue. Any idea? Is it normal for this type of bell device?