Thanks for your kind comment!
Gorgeous. How did you get the moss to grow like that? Did you just throw it in there and let it take hold as it wished?
Thanks! Yup, I've had some excess moss after tying to the DW so i just left it there for them to grow on the substrate (gravel)
I'd love to see a flare photo of the betta, its hard to tell he's double tail 'relaxed'.
How aged was the tank before you added the oto and shrimp? Do you add algae and veggie supplements for them?
Though many people like to keep 1-2 otos in smaller tanks they really are a shoaling fish like cory and should be in groups of 6 or more in tanks 10g or larger to be stress free, solo or small groups they can get worried that some predator ate the others and hide more.
What is your tank temp? Otos generally prefer cooler waters (72-77F max) and a lot more flow and oxygenation than bettas. Also moss tends to do better in the mid 70sF and lower, though bettas like warm 78-82F range temperatures.
Hope its a bit more clearer now:
Its hard to see it in pictures but maybe I can take a video of him swimming around tonight.
The tank is around 6 months old, I used to keep a school of 8 cardinal tetra must I've shifted them to another tank.
Yes, I only got to know about keeping otos after buying it together with the shrimps. Won't make the same mistake next time! It has plenty of spaces to hide so its been doing well so far. They have been thriving on algae so far but I supplement them with sinking pellets from time to time.
I understand that it will be tough to find the perfect temperature for them, Singapore is a pretty warm country so I use an USB fan to keep the water temp at around 25C (77F) in the day.