Tetracycline useless in 8.0ph?

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koh the face stealer

koh the face stealer

Jack Dempsey
MFK Member
Jun 12, 2011
365
1
33
Arizona
I've been treating my tank for callamanus parasites when my severum took a turn for the worse and developed some gnarly fin rot that seemingly has spread to his body. I've done two doses of tetracycline so far and nothing has changed as his conditions are worsening and he sits at the bottom, not eating or doing much of anything. Truly depressing.

Ammonia-0
Nitrites-0
Nitrate-under 20
Temperature-80 (just unplugged it as my room fluctuated from 75-82 on the weekends because people here like it colder on their day offs).

I've recently read that tetracycline is useless in high Ph. I hope not as I spent my last dollars on these meds and dewormer.

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Triple Sulfa can be used in combination with Malachite Green as an effective cure. Tetracycline Hydrochloride is easily absorbed where calcium is present, which renders this antibiotic useless in saltwater and high GH/PH (hard water) freshwater aquariums. Kenamycin or Oxitetracycline would have also worked better. Kenamycin would have been the best choice here but the sulfa will get the job done too. HTH
 
So pretty much I wasted money on ineffective antibiotics and this fish is going through more stress because of it?

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Can any of those meds be mixed with the tetracycline or would I have to do water changes and add carbon?

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I would not mix them. Do the water change and run the carbon for a day before adding anything else.
 
Just saw this. I have to agree 100% with Tom.

Tetracycline is not the most effective medication anyhow. The triple sulfa with the malachite green will do a much better job. I find even when treating for ich I use proper doses of triple sulfa to keep things like fin rot at bay. I think if I remember correctly as well. Tetracycline is also gram positive and triple sulfa is gram negative. Most forms of bacteria we deal with for diseases is gram negative. I could be wrong. I'm sure Tom is much smarter then I am.

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I also agree with the water change then a day of carbon then start treatment with new meds.

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The closest place to me which is petsmart has triple sulfa but the only thing with malachite green I'm finding is super ick cure by kordon. Is this what I'm looking for or does anyone know of a different product with malachite green as an active ingredient?

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