This is a discussion on mopy fish.. within the Cyprinids and Atherinids forums, part of the Freshwater and Tropical Fish category; -->
my 5 tigers and 2 neons seem mopy. they dont swim around the tank much. only at feeding time. they just chill by the ...
Have you tested your water? With that small of a tank, and that large of a bioload, your tank is prone to sudden spikes in ammonia/nitrite/nitrate. Only 2 neons? They do best in a group of at least 5 or 6. My suggestion is to try and get a bigger tank...or return some fish or give them to friends if they have aquariums until you can get a bigger tank.
Sometimes, sluggishness can be linked to disease. Any other symptoms with the fish?