No, the hillstreams are in a cold water tank.
I think about 13 clown loaches, 6 kuhli loaches, 5 harlequin rasboras, 10-ish corydoras(never counted them), 9 denison barbs, 5 SAEs, 1 pleco 🙂 Although not completely compatible, the lot seem to get on very well together. Even the small harlequins are brave enough to line up for food.
And strangely enough, the majority of the fish tend to stay around the "feeding spot" front of the tank. When I look at the back(round tank 🙂 ), there's never much action there, mostly the harlequin rasboras, having litres and litres of water to themselves and looking really happy.
I would love to get some more harlequins as there is lots of room for them but they were very sickly when I bought them and I fear a repeat of the months of TLC they had to go through to get healthy.