Hello Im new to the hobby but have researched for about a year before i bought my first tank. I purchased 2 10 gallon tanks for quarantine and a 120 dt. I fishless cycled all the tanks with ammonia. I quarantined a scribbled boxfish in one and a long nose hawkfish in the other. I started dosing MicrōBacter7 in the dt for a bioreactor and it made the water super clear. I thought I would try it in one of the quarantine tanks. I put it in with the long nose hawkfish. It was eating everything in the tank and front and center for food every feeding. That morning it ate. I dosed mb7 mid day. It acted lethargic, wouldn't eat the next feeding and was dead in the morning. I had the fish for 2 weeks and was doing great from the beginning. Is it possible that something with the mb7 affected the fish? All water parameters are good and rodi water was used in the tanks. I freaking out a little because I've been dosing the dt for 2 weeks and am hesitant to add livestock to it now. I only found one other post on the net where someone was worried about the same thing. Any thoughts or suggestions. Thanks in advance.
Quarantine sudden fish death
- Thread starter enthb
- Start date
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this a bacterial product i doubt would have the effect described. I also use mb7 and have never seen this reaction.
how long were the qt tanks cycled before fish added?
was ammonia being monitored?
were both qts in the same room and used shared equipment like nets? If so one being sick would infect the other. Any signs of disease like flashing or rubbing?
how long were the qt tanks cycled before fish added?
was ammonia being monitored?
were both qts in the same room and used shared equipment like nets? If so one being sick would infect the other. Any signs of disease like flashing or rubbing?
The tanks had both been cycled for about 3 weeks before adding any fish. They were converting 2ppm easily in 24 hours. I decided to try the mb7 to improve water quality and figured there was no harm since it was a beneficial bacteria product and the new tank could probably use a boost. It was just one dose for 10 gallons.
No equipment was shared and everything was kept separate. I wasn't using any medication I was going to observe and go from there. Ammonia and nitrites were at 0. Ph was good. Salinity was 1.022 and had been since they were introduced. Water temp maintained at 78. The fish had no visible signs of disease and was thriving until that point. I do notice when I'm testing parameters after adding mb7 the kit water looks and mixes a little different than the tanks without mb7. Thanks for the help just trying to stop any problems
No equipment was shared and everything was kept separate. I wasn't using any medication I was going to observe and go from there. Ammonia and nitrites were at 0. Ph was good. Salinity was 1.022 and had been since they were introduced. Water temp maintained at 78. The fish had no visible signs of disease and was thriving until that point. I do notice when I'm testing parameters after adding mb7 the kit water looks and mixes a little different than the tanks without mb7. Thanks for the help just trying to stop any problems
artieg1
Active Member
Most QT problems arise from ammonia and/or oxygen issues. Solve oxygen issues by adding a powerhead to the QT (do not rely on water movement from a HOB alone). Adding bacteria would not impact anything, assuming you have lively waterflow in the tank.
Ok thanks a lot. I only have a HOB filter on the quarantine tanks. Would adding bacteria with not enough flow make the problem worse? It definitely wasn't the ammonia I have been obsessive about monitoring the tank parameters
artieg1
Active Member
I would definitely add a small powerhead. You want lively water flow for oxygen exchange. Also, I recommend doing 25% water changes every 3-4 days. That has improved my QT success, even if ammonia tests show 0.
