Holy hell, I WANT YOUR TANK!
Just... Holy crap it's amazing.
We REALLY need to get ahold of a co2 kit!! If that is what it does in just a week... DANG.
Your tank is just absolutely stunning. I hope we can have one that looks that great.
One thing.. Keep an eye on your betta's fins. Some of those fish might see the bettas fins as fair game for nibbling.
on friday i tested my tank everything was fine bar the phosphate and the nitrate so i added more nitrate to get the correct ppm but being foolish i also added 10ml of trace, which i later found out makes the water cloudy.
so i did an early 50% water change and used mt tetra-safe dechlorinator which made a film on the surface, bloody stuff.
so i moved my internal filter up just to give a little more surface aggitaion, not breaking the surface but just getting it moving.
could this be all it is, as it has never been cloudy, also im struggling to get the phosphate down below 5.