Aquaponic Gardening

A Community and Forum For Aquaponic Gardeners

Information

Feeding

What commercial feeds do you use, where do you get them?

What about growing/making your own feeds?

Home made fish feed recipes.

Fish nutrition?

Are worms and/or BSF larva good fish feeds?

Members: 178
Latest Activity: Jun 17, 2015

 

I've noticed there has been much talk about trying to feed fish sustainably as well as trying to make them healthy to eat.  I thought perhaps this warranted a group.  Another point to keep in mind is that the fish feed in aquaponics is not simply a means to grow fish, it is also our primary means of getting proper nutrients to our plants so one can't really expect to remove fish and veggies from a system into which no external feed is added.  If you will be removing fish and veggies to eat, you will have to replace the nutrients you take so you can't expect to grow all the fish feed in the system and still have much nutrient left over to provide veggie growth and fish harvest.  (No perpetual motion machine.)

 

That said, there is much that can be recycled within an aquaponics system or if not directly, it might go through worm or bsf bins before coming back to the fish.

 

I'm starting a list of links here to previous discussions on feed and related things

Worms

Alternative Fish feeds

Fish Feed

automatic duckweed feeder

Fish Feeders

What feed are you using

 

Discussion Forum

Tilapia feed recipe

Started by steve. Last reply by Sue Whitney Jun 18, 2014. 4 Replies

Would like to work on developing a Tilapia feed recipe. It would consist of several  possible component categories. 1. Animal or bug Protein, fish products, BSF  2. Grains, Corn, Soy, Rice, carbs. 3.…Continue

growing brine shrimp for feeding

Started by Hydroponics Curacao Dec 15, 2013. 0 Replies

I'm interested in starting to grow brine shrimps. I've searched the Internet a lot about these but I keep getting different information. Does someone on here know how to grow them to give me tips?…Continue

"The Future of Aquafeeds"

Started by Paul Trudeau. Last reply by halemart Sep 28, 2012. 2 Replies

Click below for an interesting report from NOAA on fish food, dated Dec. 2011:The Future…Continue

Sustainability Overview of Fisheries Used for Fishmeal, Fishoil Released

Started by Paul Trudeau. Last reply by tilly the tilapia Jun 27, 2012. 5 Replies

from The Fish Site Newsletter, June 26, 2012: "Sustainable Fisheries Partnership (SFP) has released the annual sustainability overview of fisheries used for fishmeal and fish oil."  Read more at: …Continue

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Comment by halemart on September 3, 2011 at 9:10pm
I used molasses from a feed store for horses.    It comes in gallon containers.    I was using organic molasses, but that got $.     I was testing bacteria content with my microscope, and made some videos of the results for compost tea, then decided to test small amounts to excess to get an idea of what the system could handle, and high hopes of speeding up the cycle rate of the system.    Now that I know,  I add very little because now I have 30 fish, and I don't want to experiment as much as when I had 10.
Comment by Harold Sukhbir on September 3, 2011 at 9:02pm
There are at least  5 different types of molasses, my understanding is that blackstrap type has the most nutrient and there is even another one with the sulphur removed. Any particular type?
Comment by halemart on September 3, 2011 at 8:50pm

Small amounts of Molasses are fine,    I have tested up to 2/3 cup in 200 gallons of water.    It got the desired result of a huge foam of bacteria, however the bacteria formed a jell that destroyed my bilge pump.    Excess can be a problem to the pump, and could create alchohol in the system if too much.     Moderation gives extra mineral boost to the plants, and breeds gazillions of microbes from my experience.

 

Comment by TCLynx on September 3, 2011 at 7:50pm

Well, it probably depends on if there are any additives in the Molasses and how much you use.

I've never heard of anyone having trouble with using aerated worm tea around aquaponics and many people feed a bit of molasses to the microbes when they brew up a batch of aerated worm or compost tea.

 

Then again, I've never used molasses in my aquaponic systems so I can't really say.

Comment by Jake Schneider on September 2, 2011 at 3:04pm
good idea TC, but are molasses fish safe? 
Comment by TCLynx on August 26, 2011 at 8:23pm

Just keep in mind that most natural fibers are not going to last all that long constantly submerged in the nitrogen rich water, they will break down quickly so you will need a regular source of replacement towels.

 

I'm not sure that I would be all that worried about dyed cloth and I'm more likely to use old clean rags if they are likely to not last long and be thrown to the compost after a few uses anyway.

Comment by Jake Schneider on August 26, 2011 at 8:15pm
Allisyn, Chris, TC those are awesome ideas.  Are molasses safe for the fish?  If it is, then maybe a non-dyed cotton towel would work.
Comment by TCLynx on August 21, 2011 at 7:30am
Either that or perhaps a cloth that you could hang in the fish tank till the fish clean it off then pull it out and re-coat after it dries?
Comment by Chris Smith on August 20, 2011 at 8:45am
Great idea Allisyn. Norri(seaweed paper for sushi) coated with molasses might also work.
Comment by Allisyn Wood on August 20, 2011 at 5:56am
Rice paper with a thin, brush stroke layer of molasses??
 

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