I have a 37 gallon aquarium with multiple species of fish in it. It started with 3 Cory Catfish, 5 Koi Angels, and 11 neon tetras.
Now we have 4 Koi Angels (took an overly aggressive one back), 1 neon tetra, and 2 Cory Cats (possibly only 1 tomorrow.)
The neon tetras would disappear, we theorize that they were just sick and would get weak and die and then be eaten by the rest of the tank (we say they died first since the neons dont show any fear of the angels, also three of the angels are as long as a large neon)
a month ago we restocked the tank with larger tetras, 5 serpae and 3 glowlight to school with the 3 remaining neons. we now have 1 neon, 5 serpae, and 2 glowlights left.
also we have had 1 cory cat die and another one isnt looking so good, though albino it is extremely pale and less active.
The sick cory cat is the only one to have shown signs of sickness, the rest just disappeared one night, (except the other cory cat, his corpse was untouched).
pets question and answers,www.5d2d.com His symptoms are pale color, little to no activity, and his side fins look like toothpicks, just straight and narrow. And I doubt its anything, but the one that died would swim vertically and kind of hover tail-end down about the heater and then rest on it, he did this about a week.
I did a 25% water change yesterday (used water condition and ezyme), checked ammonia levels this morning after finding a cory cat dead and its between safe and caution (probably because I just did a water change the day before).
One other note, all the fish I have gotten from Petco have died, the Koi Angels are from a mom and pop fish store, the 2 surviving cory's are from Petsmart, all the neons from petco, the serpae from petsmart, and glowlights from petsmart . (in another tank, 36gallon, i have had 2 orandas, one replaced the other, from petco die and make two other orandas from the mom and pop store sick, I medicated the tank) (in my cichlid tank 47 gallons, all mom and pop, i havnt had a single death)
pets question and answers,www.5d2d.com
Any ideas would be appreciated.
the tank has been set up about 7 months. we have had the two remaining cory cats about a year, (they lived in a 10 gallon)
Hi Anonomama -
Wow! You have been having a tough time haven't you. OK, what kind and what brand of "enzyme" are you talking about? There are freshwater and saltwater varieties. I suggest you stay away from the "enzyme" completely , in my opinion. From what I have read you obviously have experience with aquarium keeping since you have multiple aquariums - however how about doing aa water change of more than 25% - let's say 40% - using only a simple tap water conditioner such as "Top Fin Water Conditioner", or "API Water Conditioner", or "NutraFin Aqua Plus Water Conditioner" added to the new aquarium water before pouring it into your aquarium. Perhaps limiting the chemicals you are adding to your aquarium might help in some way. Have you tested for your aquarium water for its pH, Nitrite, Nitrate, Hardness, and Alkalinity levels? You mentioned you tested for ammonia and it wasn't dangerous. At the moment don; t add any more fish until you get this problem resolved. From your experience you will be introducing more stress and disease if you keep adding new fish.=o)
pets question and answers,www.5d2d.com
Hopefully this will help although I have my doubts. I will check in from time to time and see what others offer for advice. I may need this information in the future.
Have a good evening.
