I can finally say: my co2 installation payed off. I was skeptical about it because sometimes my set gave no bubbles at all (so I had to shake the bottles every day). After adding two more bottles to my set (counting now 4 bottles), the bubbles are now constant. the plants are quickly growing and are bright green. Everything is going well now. I don’t even have to clean a lot (but of course I do it every week). It’s almost self-sustainable 😀
I tried to take some pictures of the zebra danio but these little buggers are so damn fast!
Here is a little evolution of my brother’s (it’s not really his anymore but I still call it like that).
ps: make sure to check the update video of this tank!