Have a bait tank holding golden shiner minnows and continue to see 10-15 dead minnows per day.

Data:

• tank has been running for about a month
• 150 gallons of water
• started with 6 lbs of minnows. Probably have 1 lb remaining.
• 1 300 gph pump to circulate water
• 1 sun sun external aquarium filter to filter and circulate water
• 4 oxygen bubblers
• switching 20% water daily

-NO2 and NO3 continue to read high

• been treating with ammonia reducer daily for a week after water replacement.

What to check next?????

Hello everyone!

I am currently working with a team under the National Science Foundation's I-Corps Propelus program. We are looking for individuals who are working in the aquaculture feed industry who would be willing to participate in a 15-20 minute customer discovery interview. The interview will be conducted through Zoom and will be scheduled according to your convenience.

For context, my team is working on transforming food waste into valuable materials for aquaculture feed.

Please help us reach our target of conducting 20 customer interviews :)

Their online store for buying feed seems to be defunct (in the USA at least) and I couldn't get through to them on the phone. No luck with email either, yet. Anyone having similar issues?

Also, now I'm looking for a different way to get a few more 50 lb bags of trout chow.

Hi there!

Does anyone know where people are discussing kelp aquaculture outside of the Aquaculture Information Exchange? I'm interested in the connection between marine technology and regenerative aquaculture but I'm not sure which/if any subs are discussing this type of content. Curious what the hurdles/pain points are when it comes to kelp farming.

Hi,

I am working on aquaculture system that draws on alkaline groundwater with the intent to raise trout. I am unsure how reduce the alkalinity of the groundwater. Water softeners can reduce total hardness, but I don't understand how to deal with the carbonate compounds that make it into the tubs.

Would love any input from those who have successfully reduced the alkalinity of hard groundwater without an RO system.

Anybody with any idea if live foods like Moina and daphnia or copepods have a flavor perspective? If anyone has guide manual or pdf regarding livefood production please help me.

“Fishponds are not needed at all, they are old school, obsolete and even better for society without fish in it. Take out all fish, let the water be clear as glass again.” - although I appreciate the intent, but I disagree it could be a solution.

Nobody talks about agriculture, catchment, extreme precipitation events bringing nutrient loads into water. It always is the fishermen! Poor them.

Aquapri is a family owned fish farming company, controlling the whole production chain from egg to Harvest.

https://reddit.com/link/1dtor5l/video/mo8elmrak4ad1/player

Hello!

I got some fish farms ponds(over 100 acres).They’re pretty large and have multiple species of fish in them.I’m looking for a system that could help me monitor the water quality,the fish welfare and stuff like that.Automatic control systems will be great too,if there are any.

Could anyone give me some suggestions for these systems and preferably affordable too.

I would be grateful if anyone can help me with this.

Hi, I'm doing a Masters degree in aquaculture. Because of covid the systems got abandoned and since there wasn't a student working with aquaculture it decayed, so My director instructed me to build two systems, on one of the systems I'm gonna use a Biofloc and the other system will be a clear water RAS.

I'm gonna start building a mechanical filter, once the water passes through that filter it's gonna go to a biofilter, and here is where My question is. How do I start the nitrifying bacteria? Is there a commercial inoculum that I put on the media, or the bacteria in the water Will start growing on the media?

Sistemas de produção de última geração. Serviços de consultoria, apoio técnico e analise de instalações produtivas. Vamos produzir mais e melhor #aquiculturasustentável #resultadosSemfronteiras

Genetically improved fish uses Darwinian method to raise fish in controlled conditions. That means natural selection is at work here because the fish that tolerate stressful conditions able to pass it down to the next offspring. Additionally, fish that are generically improved are not necessarily modified; that is, using DNA from other species to quicken growth and meat production.

I see genetically improved farmed tilapias(gift as abbreviation) for example as one of the drivers for sustainable farming. With using tilapias to endure disease ridden waters, the offspring with the past experience from parents benefits more resistance against pathogenic Aeromonas for example. In places where it's rural and little to sell, GIFT strains sound great in a way that those farmers don't have much access to much medicine and resources in raising the fish.

Another thing, selective breeding for genetically improved strains also targets Indian Carp species and salmon. If we would follow the same path in America, allow welfare experts and geneticisits to volunteer, create user friendly tools to target specific variants, obtain analysis readily for fish longevity and onwards, there would be more substantial efforts to guarantee projects relating to growing faster, more resilient strains in marketing sizes that wouldn't effect indigenous species, nor using wild species to make vigorous parents.

I am currently employed at a RAS Facility but I want another job. Automatically, I think about remote work but I would love to make it relevant to my career goals.

That being said, is there any part of the aquaculture industry that can be done remotely? Perhaps more on the sales or marketing side?

Any input or even opening you’re aware of are greatly welcome and appreciated!

https://preview.redd.it/2chox5tyf67d1.jpg?width=720&format=pjpg&auto=webp&s=320f0d0802c0e13a951b65a1d74e54fd4c00ae21

My dad started farming red tilapia about a year ago and suddenly they all started dying. Yesterday we found about 6 dead tilapia, but today we found more than a hundred and we don't know what is causing it. Can anyone help?

Anything special I should know, or be prepared for?

Does anybody have any experience in this area. I am especially interested in osmotic shock and biological control solutions. Any advice would be very welcome. We lost our best breeder to this a few days ago.

Does anyone have a source for organic fish feed for raising tilapia? My buyers want organic fish and are willing to pay the price.

Right now I am using Purina Aquamax Pondfish 4000, want to make the switch to certified organic.

Hello all! Ive been culturing bannerfin shiners (Cyprinella Leedsi) for the past year, and I'm yet to figure out a major issue: water mold. A large portion of the eggs I collect grow water mold while on the tiles they're laid on, and while in the egg tumblers.

I collect eggs every other day; If I were to collect everyday there wouldn't be enough eggs to be worth it, but if I wait more water mold takes a majority of the eggs. In the tumblers, the eggs tumble in a 5g aquarium with a constant flow through of water. Also I add 3mL methylene blue throughout the day.

Even with constant flush and methylene blue, I loose a large percentage to mold. To my knowledge the methylene blue should be preventing the bacteria from growing. This all leads me to my questions for anyone who might have an answer:

Does anyone have any ideas on why there is still a problem?

Are there any ideas that might help alleviate water mold growth on eggs?

I will also add that the systems that hold my broodstock are also on a constant flush. I've tried increasing the flush rate and added larger pumps for higher flow. If anyone has any ideas I would love the imput! Thank you everyone!!

RandAqua

I'm super small scale, selling about 100 neocaridina shrimp per month. (about to start, working on getting aquaculture license).

If a local fish store is offering $4 wholesale, is that an 'out-the-door' price, or do I additionally add sales tax to the order?