Day 10 >> All fries gone!! Amusingly, 1 guppy from another tank managed to jump into it and cleared everything.
She took the risks by jumping over (From another tank on another stand next to it) and well deserved the meal I guess.
Next project, I will just separate the angelfish pair into a tank of their own, since I heard they breed easily (every 2 weeks) from the first spawn. Let's see how it goes from there.