Hello everyone, I'm a new fishkeeper and I have been setting up my 60 litres aquarium over the last two months and I have fallen in love with loaches as soon as I saw them! I was planning to get 6 kuhli loaches for my aquarium but I have read online that they require a soft ph, but mine is always been at 8, so I wonder: would they be fine in my aquarium? I have lot of plants and rocks and hiding spots, but I have a fine smooth gravel as a substrate, not sand, would this be a problem? I also have 6 white mountain cloud minnows in there and they are doing absolutely great (I have also noticed some super small fish going around so I guess that they bred as well)! The temperature is always been at 23° celsius and I think it's fine for the loaches, correct? Another issue I might have is the filter, I have a bluewave 3 internal filter in my tank, the openings on the sides are pretty small (they are around 3mm high and 3cm long) so I don't think they will get in but I'm not completely sure about that, anybody has some loach experience with that filter? I'll upload some pictures of my tank as well. Thanks a lot for all your help!