I have a black sailfin molly whose abdomen is extremely bloated. It was in my 55 gallon tank up until 2 days ago, when I moved it to a 10 gallon quarantine I just established. I seeded the 10 gallon with old BioMax from an already established tank. After being in the quarantine for 1 day, its abdomen has a white wound, as though his scales are open there and white flesh is poking out. Some scales on his abdomen have turned silver/white. I can't remember the last time I saw him poop.. I'm not sure whether he is constipated or what.
Since being in the 10 gallon quarantine tank, I have slowly added 3 tsp of epsom salt. He does not seem to be getting better, in fact, worse because of the wound that appeared today. Any idea what could be wrong or anything else I could do to save him? Thanks.
1. Size of aquarium (# of gallons): The fish is currently in a 10g quarantine tank; it was previously in a 55g.
2. Is your aquarium setup freshwater or brackish water? Freshwater - although I have been adding epsom salt the past 2 days (3 tsp in 10gallons). The 55 was freshwater.
3. How long the aquarium has been set up? The 10g quarantine it is in now has been set up 2 days (I used old BioMax filter media from an established tank). The 55g set up approx. 6 months.
4. What fish and how many are in the aquarium (species are important to know) No other fish are in the quarantine. In the 55 there are 3 panda cories, 3 skunk cories, 1 bristlenose pleco, 1 pearl gourami, and 5 longfin black skirt tetras.
5. Are there live plants in the aquarium? In the quarantine, no. In the 55, yes.
6. What temperature is the tank water currently? Both temps at 78 degrees F.
7. What make/model filter are you using? Quarantine tank: TopFin 10. The 55 gallon: AquaClear 50 and an old HOB Marineland 350.
8. Are you using a CO2 unit? No.
9. Does your aquarium receive natural sunlight at any given part of the day? No.
10. When did you perform your last water exchange, and how much water was changed? 100% on the quarantine 2 days ago because I just set it up. A 25% change on the 55g 2 days ago, before the fish was moved to the quarantine.
11. How often do you perform water changes? Once weekly.
12. How often and what foods do you feed your fish? Once daily; a variety of two types of flakes, freeze dried gamma shrimp, and crisps.
13. What type of lighting are you using and how long is it kept on? Quarantine tank: No lights. The 55 gallon: two 18watt fluorescent kept on for approx. 8 hours/day.
14. What specific concerns bring you here at this time? My molly is extremely bloated and has a white wound on its abdomen.
15. What are your water parameters? Test your pH, ammonia, nitrite and nitrate. The quarantine: Ammonia - 0, Nitrite - 0, Nitrate - 5ppm.
The 55g: Ammonia - 0, Nitrite - 0, Nitrate - 18ppm.
16. What test kit are you using and is it liquid or test strips? API liquid test kit.
17. When was the last time you bought a fish and how did they behave while in the pet store tank? 4 weeks ago (the 3 skunk cories); normal.