90% Mortality in Our Biofloc Challenge Tanks

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90% Mortality in Our Biofloc Challenge Tanks | What Happened?

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Up to 90% Mortality of the shrimps in our biofloc challenge set up! Learn what happen in our setup so you can avoid the same fate!
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Пікірлер: 19

@Praesciens 2 жыл бұрын

Thank you for sharing so honestly. It is when things go wrong that we learn the most.

@Rioalbab01 Жыл бұрын

vannemei will start surfacing only after DO hit below 2,5 and won't kill vannamei that quickly. its the nitrate from the sludge that turned toxic in closed water system it is crucial to maintain waste (ammonia,ammonium,nitirite and nitrate) through filtration since you dont have photosynthetic microbes in the system to remove Nitrate. Bacillus will only convert ammonium (NH4) to Nitrite (NO2) and Nitrate (NO3) while at low concentration that might not be dangerous but as it accumulates, the reduction happen and disaster knocking on your door

@toobaffled_on_X_site Жыл бұрын

Are you saying this wouldn't occur if the pond was under the sun?

@prasanthvenkat1996 2 жыл бұрын

Excellent presentation about the problems of Vannamei Biofloc culture system.

@raulcadelina9744 2 жыл бұрын

I'm following all of your blog and I'm surprised the devastation

@mufeednational6438 2 жыл бұрын

Very nice information

@ravinderdahiya7247 2 жыл бұрын

What's the Salinity of this tank?

@nazriahmad3158 Жыл бұрын

Biofloc system requires aerator 30L/min of 1m cubic water. Thats why TAN was higher . Nitrification xtvt requires oxygen higher.

@AdiSucipto 4 ай бұрын

Hehehe, nice

@carljustinemosquida4727 Жыл бұрын

can we still eat them?

@hsy737 Жыл бұрын

So low DO causes mass mortality.... Then what caused low DO? overdose of molasses or insufficient aeration?

@bobbymoore3862 Жыл бұрын

Seems like all the above and low maintenance

@mangoparadiseexports7820 2 жыл бұрын

Ohh

@penguinpringles 2 жыл бұрын

Why does the water look so dirty?

@somaliano99kingkonghimself75 11 ай бұрын

It is biofloc culture good bacteria I think this is nothing for you I have studied biofloc PH levels ppm aireation if you have intrest let me know

@faizsofari8808 2 жыл бұрын

so what's the main reason?

@RASAquaculture 2 жыл бұрын

Low dissolved oxygen level

@faizsofari8808 2 жыл бұрын

@@RASAquaculture much appreciated for replying me. what's your opinion about nanobubble technology? I'm about to use it on my shirmp farm. so the point is 1. is nanobubble really makes a difference? 2. is there any negative effect of too high D.O. level? 3. some say nanobubble/microbubble kills small bacteria, is it disturbing the process of plankton fermentation?

@toobaffled_on_X_site Жыл бұрын

@@RASAquaculture was it only because of the biofloc sludge or because of the alkalinity and other factors?