Tropical Fish Diseases
Have long established 20 Gallon Tropical Fish Tank...
SMALL FISH...3 neons, 2 hatchetfish, 2 Plecostomus (very small) & 3 swordfish.
2 weeks ago I added 2 small angels, clown loach & small redtail shark.
Saturday...within a 12-18 hour time span...I LOST ALL BUT 1 of the swordfish!
DOES...