My brother has a 20 gallon tank. This was his stock
1 Dwarf Gourami
5 Neon Tetra
3 Long Finned Danios
3 Emerald Cories
2 Mosquito Fish
For 2 months all the fish were doing fine until he added a Dwarf Gourami, and 3 Cories. Since then fish are having their tails eaten off. We assumed it was the Gourami and we moved him to my 150. I saw his tank today and now he's down to 2 Danios, and 3 Neons.(all with their tails/fins nibbled) It only got worse. The only fish that aren't hurt are the Cories and the Mosquito Fish. I assumed it was the Cories because the Mosquitos were in there for a long time with no problems. What do you guys think???
Thanks
1 Dwarf Gourami
5 Neon Tetra
3 Long Finned Danios
3 Emerald Cories
2 Mosquito Fish
For 2 months all the fish were doing fine until he added a Dwarf Gourami, and 3 Cories. Since then fish are having their tails eaten off. We assumed it was the Gourami and we moved him to my 150. I saw his tank today and now he's down to 2 Danios, and 3 Neons.(all with their tails/fins nibbled) It only got worse. The only fish that aren't hurt are the Cories and the Mosquito Fish. I assumed it was the Cories because the Mosquitos were in there for a long time with no problems. What do you guys think???
Thanks