These aren't a good combination in the one tank unfortunately - a comet (best suited to a pond) would out-compete the black moor for food, and, as they grow (esp the comet), the peppered cories and WCMMs are likely to become a snack for them (but the former require warmer water to the WCMMs and so wouldn't do well together even in a separate tank), while the fish have various other different requirements (eg fast flow for the hillstream loaches which the others mightn't cope with). Check out
https://www.fishkeeping.co.uk/modules/ ... esheets.php?cat=Coldwater for details/caresheets for the different species.
Which of these fish do you have already? You're likely going to need a separate tank for each species. [PS. If you reply today, unfortunately I won't be able to be online again before tomorrow, so bear with me; thanks. :)]