Hey guys so I've had my golden dojo loach for about 4 months now and all of a sudden (about 2 days ago) he's started making a weird noise at the surface of the water. I've only noticed that at night so far but I don't know why he's doing it. I've read that it means they're happy and feeling good but then I've also read that it means they're hungry. Any of you loach owners know if I should be worried/feeding him more or if this is normal? Thanks so much!