Large sucking loach

I got this fish tank but idk what can fit in it. I don't want any fish that needs a heater or anything I want a cold water fish or like room temperature. It just this tank is small, idk what to like get I live in Shrewsbury and I always go to Maidenhead aquatics, any help? It has already gravel on the ground, and a wallpaper at the back, so but the filter needs to be on so the water is cycled right? First I was thinking about a paradise fish, or like. A weather loach but they get too long and no swimming places so I can't. I just want to be happy with maybe like fish that are like, you know friendly and will come to you and stuff. See less

Brilliant I’ll take 80 splendid loach

Yeah been after these for ages same as me royal clown loach that I wanted for years and the best of it is the guys giving them me for free👌👌

Has anybody got any octocinclis Probably spelt wrong lol. Eastbourne.