Hey guys just wondering what we are doing wrong, so far have brought 6 of these fellas (4 from jansens and 2 from hollywoods) and they have all died, last for about 3-4 weeks and then just one day they disappear and find them floatinng a couple of days later with no apparent swelling or injuries. They are kept in a 3foot which is about 120L. No nitrites, ammonia, very low nitrate levels, under 10ppm temp is about 26 and not sure of pH but theres breeding guppys in there a school of neon's (about 15) a couple or 3 platties, 2 sae, and 3 skunk loach's which are all as happy as larry and never seem to lose any of them. What are we doing wrong to make the dwarf gourami's die. They are feed spirulina flake and brine shrimp flake and the occasional bit of frozen brineshrimp.