I think they're fine with dats but the only problem i found out that if you just buy a small cloan loach you gotta quarintine them because they are known to get white spot disease and it can spread to your other fish in your tank. Also, if your cloan loach is very smaller compared to your dat it can cause problem if your dat eat it, their spines are their back are quite dangerous, so be careful and i also read somewhere that they are poisonous. So do your homework before mixing these guys up. Last resort, if you cant find information, try google it.