would silver dollars be ok in a community 50g tank with plants and angels and a kissing gourami and ofcourse corys. if so how manyEelzor said:For the tank you specified, the 50 gallon, I would put something a little more large, to make the most of your tank. Silver dollars are nice sized for the tank you said. If you only wanted fish in your list, I suppose the tigar barbs would be ok.