Um possible he is hiding due to stress? Maybe there's too much water changing going on for a 200l I think personally one 30% every 2 weeks would be ok, but it depends on filter over feeding and all that.
Hey can I just say angel fish never should be kept in a pair (that's what people advise) as the stronger one will beat on the weaker one but in 4+ the anger will be equaled out and they won't fight or you can keep them singly where they actually do the 'dance' whenever I feed it. But I've seen...
Yes you can, you can put snails with them and also I've kept otocinculas with them before and seem to get along well be careful though as each Betta is different
Try an angelfish (but as a young one) because adults can eat neons if aren't grown up with the fish n the tank, they can also be boisterous at some times although I've never experienced this
Hiya! I've been keeping fish for 20+years and my family have also:
Cycling doesn't take up to 6 weeks (like some say) it actually depends on the size of the tank so your tank (20 litre) would take 6/7 days to cycle fully. We've also kept goldfish in the past in a 5 gallon tank. (4 of them) and...