Sorry accidentally posted in "massive die out" thread first. First time posting here.
My sordid tale:
Very well established tank. Orginally for brackish (Discus) and plecos set up in 1997 or so. Discus all died over time (unexplained). Converted to more "traditional" tropical fish with no particular problems. From 2011-2013, tank was somewhat neglected cleaning schedule due to my travel schedule and ill relative. Fish generally healthy and no concerns despite infrequent cleanings. Now that things settled down, decided to take better care of tank and perhaps add more fish for interest (at that time, 2 tetras, 1 pleco, 1 spotted raphael and 2 zebra danios. Larger tetra always been a bully, but otherwise everyone happy).
Jan 2014 - added 3 zebra danios. Feb 2014 - added 2 dwarf gourami and 2 mollies. I think I took too long adding the gouramis and mollies to my actual tank after arriving home. Quickly lost 1 mollie and 1 dwarf gourami. Otherwise, all new tank members settled in well.
March 2014 - noting tetras looking stressed. Tested water, found high nitrates. Changed 40% water, added salt, Quick Cure treatment (with filters still in place). After about 3 days, tetras looking better and realized they were being bullied by Gourami. Shortly after treatment, all stable. All fish active, eating, cooperatively living. Noted 1 instance of Gourami abdomen looking fat, but had just eaten huge blood worm meal....so attributed to that. Maybe?
April 2014 - all tank parameters looking good on test kit. Water changes every 3-4 weeks. Added 2 sword tails. Good acclimation. No problems. Added air stone for oxygenation.
2 weeks later, added 1 dwarf gourami. This new addition seemed stressed from the start. Established gourami bullied for 2 days, then new gourami found lying on his side. Removed from tank and destroyed.
The next day, established gourami looking stressed, hiding.
Found nitrates VERY high again. 50% water change, added salt/stress coat. This seemed to help for a day or so for gourami, but
over the last week has developed the following:
bloated abdomen, jerky movements when swimming, frequently seen resting at a 45 degree angle with fast respiration. Still eating despite all of this. As of today, all symptoms present and growing worse.
Last 3 days, noting smaller tetra to have ragged fins and exhibiting jerky swimming movement in last 2 days. And today, thinking I see the larger tetra doing this as well.
Maybe I'm imagining things now, but tonite noting 1 tetra and now 1 swordtail to be bumping into side of tank with nose. Mollie hiding at top of tank tonite. Most of the fish hiding. Swordrtail Eyes more prominent?
Started treatment with Quick Cure again 2 days ago and removed filter with 2nd treatment. Fish growing worse despite. Using 1 drop per every 2 gallons as is dose recommended with tetras in tank.
No hospital tank available.
In 5 gallon tank with all perfect parramters,weekly water changes with gravel vacuum since fish added, feeding once daily with flake - VERY light feeds. live plants, spider wood, carbon filter - Tetra brand, temp 77 degrees fish-less cycle over about 8 weeks. Has had fish in it for only about 3 weeks.
First had 2 glo fish danios. Despite appearing healthy and aggressive eaters, 1 died inexplicably after 3 days or so. Other danio lived well for another 10 days with no issues, so added 2 guppies (male/female) about 4 days ago. After 2nd day, guppies getting bullies by danio. By 3rd day, male guppy looking ragged. Added Quick Cure - 1 drop Saturday (5/10). On 5/11 - male guppy dead. ALL FISH PURCHASED SINCE MARCH 2014 FROM SAME MOM/POP FISH STORE. THEY ARE VERY NICE, BUT WONDERING IF THEY HAVE GIVEN ME A DISEASE LIKE FISH TUBERCULOSIS? Aquarium tropical fish disease diagnostics. Fish treatment. Sick fish, ill fish, cure fish.
NOT SURE IF I SHOULD USE ANTIBIOTICS OR WHAT I SHOULD DO? PUT FILTERS BACK IN? I FEEL LIKE EVERYTHING I'M DOING IS MAKING WORSE!!!!
When we went back to buy the guppies from the mom and pop store, they admitted to having seen a "suspicious fish" and were doing thorough tank cleanings (not in the tanks I bought from, but.....). Also 2 of the tanks had lights out "due to stress/illness".
1. Size of tank? -- 55 gallon freshwater (and 5 gallon mentioned above as well)
2. Water parameters
a. Ammonia? - 0
b. Nitrite? - 0
c. Nitrate? - has been as high as 180ppm, but currently 0 (more info above)
d. pH, KH and GH? - 7.6ph, not sure of others
e. Test kit?
3. Temperature? 74.6
4. FW (fresh water) or BW (brackish)? - FW
5. How long the aquarium has been set up? - 15 years
6. What fish do you have? How many are in your tank? How big are they? How long have you had them? 1 plecostomus, 1 spotted raphael - both 6 inches, 10+ years old, 5 zebra danios (3 about 4 months in tank, 2 at 3+ years), 2 tetras - 3+ years - both 4-5inches, 2 swordtails had 3-4 weeks, both about 2 inches, 1 dwarf gourami (about 4 months in tank) 2-3 inches, 1 mollie - been in tank about 3-4 months. about 2-3 inches long
7. Were the fish placed under quarantine period (minus the first batch from the point wherein the tank is ready to accommodate the inhabitants)? NO quarantine at home. Fish store claims they quarantine
8. a. Any live plants? Fake plants? yes, yes
b. Sand, gravel, barebottom? - gravel
c. Rocks, woods, fancy decors? Any hollow decors? yes rocks and driftwood
9. a. Filtration? - Biowheel type filtration, type C filters
b. Heater? yes
10. a. Lighting schedule? What lights are used? - strip lights, 12 hours per day currently
b. Any sunlight exposure? How long? - no
11. a. Water change schedule? every 3 weeks usually, but diff since this problem
b. Volume of water changed? - usually 25%
c. Well water, tap water, RO water? = tap water
d. Water conditioner used? - Stress Coat
e. Frequency of gravel/sand (if any) vacuumed? - vacuum gravel with every change
12. Foods? - flake and frozen, sinking algae disc
How often are they fed? = flake daily, frozen 1x per week (brine shrimp or blood worms), algae disk weekly
13. a. Any abnormal signs/symptoms?
b. Appearance of poop? - normal?
c. Appearance of gills? = normal?
14. a. Have you treated your fish ahead of diagnosis? yes
b. What meds were used? Quick cure - formalin product, aquarium salt
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