How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Anna Your Own Question
Anna, Pet Expert/Biologist
Category: Pet
Satisfied Customers: 11545
Experience:  40 yrs.: herps, pocket pets, rabbits, poultry, dogs, horses. Biology degree. Vet assistant.
Type Your Pet Question Here...
Anna is online now
A new question is answered every 9 seconds

My Benji was not looking right and I decided he must have

Customer Question

My Benji was not looking right and I decided he must have fin rot. He is getting good care and I love him and am so worried, I cleaned his tank and his toys .......he is quite active and still flaringI . I put salt in his fresh water and got Bettafix and treated his tank for 3 days so far .........but now I read that really is not medicinal and is perhaps helpful for his water as it is just mellaluca and not an antibiotic. Is Betta Revive good or is there something else better. I have him in a 3 gallon aquarium, started out in a 1.5 but wanted a bigger home for him. He is so incredibly responsive to me I am in awe. I had no idea Bettas could bond like he has. He goes beserk when I sit down at my desk, I so don't want to loose him.. Thanks in advance for your input, Judy
Submitted: 1 year ago.
Category: Pet
Expert:  Anna replied 1 year ago.
Hello Judy and welcome. My name is ***** ***** I'm a biologist with a special interest in fish. I understand your attachment to your betta. Many fish have so much more personality than people would ever guess. I just want to let you know that I'm working on some information for you, and will post it as soon as I have it typed up. I appreciate your patience, and will be back shortly.
Expert:  Anna replied 1 year ago.

Thank you for waiting. This infection is usually caused by gram negative bacteria. BettaFix and MelaFix are too mild to treat it. Maracyn 2 is most effective against this type. Other antibiotics, including tetracycline can be also used, but I've found the Maracyn 2 to be most effective. If you can't find Marcyn 2 in your pet store, look for another antibiotic that treats gram negative bacteria.

There are some other things to consider. The tank should be kept at 76*F to 78*F because those temperatures inhibit the growth of the bacteria. Water quality must be perfect. I would do a 100% water change to remove the BettaFix, using water that has had the chlorine removed and is the same temperature as what is in the tank. Remove carbon from the filter. Then treat with Maracyn 2 according to the package directions. If water conditions are not kept perfect, no medicine will work. It's best to test for ammonia and nitrites every day. You want them at zero. With perfect water, optimal temperatures and an antibiotic that treats gram negative infections, you should be able to clear up the fin rot.

If you have more questions, let me know . I hope your betta will reach a full recovery.


My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back, I am happy to address follow-up questions. Please remember to rate my service after you have all the information you need. I will greatly appreciate a positive rating as that is the only way I am compensated. Thank you!