Jake Levi

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About Jake Levi

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    Member

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  • Biography
    Retired biologist, farmer lifelong, from minnows to cattle and horses,
  • Interests
    Fishing, hunting, archery, gardening, family and critters

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  • Location
    Michigan, USA
  1. Yes, the T5's are the best Flo. grow lights, they are much larger in dia then any of the others. I have had good experience using them. They might be able to be ordered from a dealer. Even here I have gotten better prices buying them in a box, the size I got had ten lamps in a box. Good luck. Jake
  2. To further this on the pump and grow bed, Dr McMurtry suggests a 15 min pumping time per hour for the flooding stage, and then an hour to drain. This needs a careful choice on the pump, that is capable in 15 mins to give a 'flooding' to the bed, another reason why he is adamant on using sand for the growing bed. So if your goal is other then a McMurtry IAV bed then your choices are your choices, some will work better then others. You didnt mention the size of your goldfish whether they are little guys or adult near spawning size. So there is a lot of room for you in your system to tweak it as you want, your results can vary, but its all up to you, a lot of different configurations can work very well for you. I have parts for a similar system for myself, inside, and almost at the same time acculating material for a flood and drain in a hoop house next to the house. FWIW, the inside one will have 2Xs the gallons in the grow bed, as the tank, and it will also have a 50-75 gallon sump/reservoir , the pump will have capacity to flood the grow bed sand in 15 mins, and then it drains. I will tweak the flooding time to what seems to work best, I expect every other hour. we'll see. The inside tank is 75 gallons, and it will have 15 koi, about 5-6 " to start. The hoop house will have Blue Gills. To start, maybe a 2nd system with Yellow Perch. Right now emphasis is on putting the inside system together. The hoop house will probably go together after Labor Day. So , we shall see, most of the inside parts, the main thing is to build the grow bed. It is taking 2nd place to another outside project, but it will come together.
  3. I think you are right. Mycelium. It would cover all of the media.
  4. Sounds very interesting, please keep us posted in how its doing. In the fwiw column, I prefer to use a combination of nitrifying methods.
  5. That is why you have the pump on a timer. Dr McMurtry discusses this. He uses/suggests a 15 min flood cycle. He also stresses the use of sand in 'his' IAV system. All of his results and writings are on the use of sand, right down to the size of the sand.
  6. Balance the cost between LEDs and T5s. In our stores here the LEDs price out higher then the T5s.
  7. As others say, read everything that you can. Not every system will match your facilities. The McMurtry system is one of my favorites. It does work well in places like you mention, a large former facility. Research closely and intently your laws and regulations on fish farming, and processing. Getting experience in a facility first will be money in the bank for you, cram. learn all that you can about fish and successful systems. Let us know which you choose and how you are doing.
  8. Looking at your list I would make sure that the grow volume can accommodate your pump, and vice versa, with this pump you need more volume, 1:1 is good, on paper, but a 2:1 ratio is easier to live with, the higher the gro vol the safer, use your present grow container for the filter and get a 50 gal tote. About $20 at Walmart, or comparable. Life will get a lot better. On your lights, check out the wattage for every type, thats what you are comparing .Thats what you need to compare between types, how much wattage are you getting per dollar. Thats my 2 cents. My favorite filter is a large container under light, chock full of floating plants like hornwort, or other fast grower, several big public aquariums use these for both fresh water and marine systems. In the marine of course with marine plants. Another name for this is a refugium. I love them. I consider it the fool proof system, with me as the fool.
  9. You can get inexpensive T5 Flo. lamps for your setup, check them out, they are readily available. You still have to make sure that you have the wattage though, make sure its enough.
  10. To me the question isnt can it be, but is it worth it? If done it makes pretty expensive potatoes, in place of other scarcer veggies. I have no doubt that aquaponics can grow anything that we want to, to me its a matter of should I grow something in favor of others. A 5 or 10lb bag of potatoes is pretty inexpensive. Each to his own.
  11. Potatoes are usually a lower priced food to buy, so I have never grown them in an aquaponic situation. Good luck with them. I'd try similar to growing Tomatoes.
  12. The closer the sump is to the fish tank the less work is needed to get the water to the fish, a siphon overflow then can take the water to the grow beds by gravity.
  13. Does the brand of fish food used impact the organic certification ?
  14. How is your search going ? I am surprised there were no responses. For myself I would put it together as there are so many components available now. I am in northern Michigan so there is a limited growing season. And I am thinking that might give an advantage to the Blue Gills, but the only real answer is to try both species for a cycle .I am looking at a mix of greens and see which do best in this system. The hoop house will not be heated beyond keeping the water lines above freezing. How large a system are you looking at? I am planning a small system, mainly because of age, and just want a system to supply family and friends. So my tanks will be Rubbermaids, and growing beds of reinforced plywood with pool liners. And the sump a large Rubbermaid pool/tub. I will house it in a hoop house, 12' by 20'. I am planning initially two linked systems for two species to see which does better in my situation, blue gills and yellow perch. I am planning a flood and drain system. The high point of the beds will be at the far end, with the deeper ends draining into the sump at the near end and the tanks above on blocks, the sump will be dug in just a bit more more then the tanks are elevated. I am planing on foam insulation for the below ground parts of the sump. The sump will pump directly into the tanks, raising the water level in them and the overflow will go from the tanks to the grow beds. Thats as simple as I can make it. How does this compare with your plans? I would also like to hear from others in how this compares with their systems.
  15. I am working on a new system, for my living room, it has a large sump, of 3/4" Marine Ply with epoxied seams. The ply has screws to hold the box together then the inside ply is coated with a 2 stage epoxy. Its my first time using this product, it mixes and goes on as other epoxies, and cures hard to the touch overnight in our 55-70 F weather. It is the company's suggested underwater epoxy. But they didn't have any idea how long the raw epoxied sides could be toxic. I put the last thin coat on all seams this morning and plan to fill it in 48 hrs , I will leave it filled for a couple days, drain it, dry it out and refill it again, I plan to introduce a few minnows and goldfish on the 2nd fill, and remove if any show distress. Otherwise I will give them a couple weeks in the sump. Then remove and put back in their own stock tank. Comments? Others experiences? Jake