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I am happy to hear you say that you don't have those on your system and that it is clear. How often do you feed the fish and what? I liked the idea of the fish getting more of what they would eat naturally and didn't like the idea of mostly feeding commercial food for so many reasons. What is your system size and stocking ratio? I just assumed it would be a green water system if I didn't have those, but I am still pretty much a newbie.. I was planning on insulating of the tanks and covering them too. I have been told by most people(w/ rare exception) that I needed the clarifiers, net tanks,tons of ari stones, ari pump etc. I was also thinking that the oxygen will be coming in from the free fall stair step of the four IBC tote fish tanks (4" PVC piece) and . I was not sure if would be getting these air stones. I was figuring I can keep it as simple at first, keep testing the water and add whatever after if needed. ~Michelle
Raychel A Watkins said:Hi Michelle
aquaculture people live with the algae in their tanks with little or no problem. I don't want it because I want to observe my fish. I get a great enjoyment out of watching them. I am also enough of a scientest to know that observation is the best way to tell what is going on. A case in point, this evening I was working in the fish area when I noticed that this tank of fish were all at the top gulping for air. I was shocked because a few moments ago this was not true. I went over to the tank and pulled up one of the airstones and it was not blowing bubbles. One of the pipes had gotten knocked off and the air was just blowing into the air. As I went to fix it I looked at each tank of fish and every tank without fail the fish were gulping for air. I put the pipe back together and the fish resumed normal activity. You could not obseve this if the algae covered the tank. You can't see which fish are sick and could lose the whole tank before you knew. I put shade cloths over my tanks and the styrofoam over the troughs. The water gets minimal algae and the fish eat that. I also wrap the tank in shade cloth if it is transparent. I see the fish eating the algae off the sides all the time. I do Not I repeat I do not have all those net tanks and clarifiers on my systems and my water is clear.
Michelle Silva said:
Well, cooling isn't really in my area of expertise. Where I live cooling is easy/cheap and heating is hard/expensive. I have thought a bit about geothermal cooling (buried coils or piping with a heat exchanger or fans to circulate air). I know folks have done it, and there's absolutely nothing that indicates that a well designed buried cooling system wouldn't work. But then again the average temperature of the ground (5 feet beneath the surface where temps are pretty constant) where I live is 50F.
I have 2 big systems, at least what I call big. One 45 ft trough 4 ft wide and 12 in deep. I have 2, 250 gal tanks of fish attached to this. I have a 23rd tank same size I use as a filter.. In the bottom I put bird netting, on top of that a 2, 2 inch plastic type woven mats used in koi filters. I hold them down with a rock. The water from the fish filters up through this . I have cleaned this twice in 7 months. It really didn't need it. I let out some water from the bottom once a month just to see if there is a build up. I get a gallon or so of dark water. I have the midge fly larvae and the Gammarus or scuds in my system. If one continually cleans they break up a balanced ecological system. If a system is in balance it will stay pretty clean. My second system is a 25ft trough with one 250 gallon tank. There is absolutlely no filter or anything on that system. The plants grow wonderful. I never have a problem with root rot. The creatures in the tanks take care of the waste.
I have what I call a high density of fish in there . I figure but don'tknow for sure there is greater than 150 fish and they are approaching 1 pound at this point. Some are over 1 pound. I know that people into it for a bunch of money may have a much higher density. I know the aquaculture people I know do. I want happy fish. I want to look into my tanks and see happy fish. I personally believe happy fish grow better and taste better. It is bad enough I am going to eat them, I could at least give them a happy life. Call me nuts, it's how I am.
I just set up a 2, 250 gal system with about 200 small fish in the tanks. So far I only have 2, 2ft by 24 ft troughs hitched up to the tanks. I have no filter on this either. The less work I have to do the better. I have also raised my troughs off the ground and have them 32in high. Absolutly perfect to plant things, clean, or even lean on. I put the small fountain pump 250 - 300 gal per hour in the trough and run a 1/2 in pipe from it (overhead so I don't have to climb over or duck underneath) dto the first fish tank. I have found a simple fountain pump in the trough is where I am at.
One thing I have discovered since getting into this about 8 months ago is that there is no right way to do it. There are many, many ways all of them right. Do like Sylvia said and set up a small system and see how it goes or in your big system leave a space to stick a filter in. I have used 55 gallon drums, the same tank as fish , again there are many ways. Just enjoy, don't get uptight, set back and ponder a bit and it will come to you. Stick around this site and you will find a myriad of ideas on every aspect of aquaponics. They can tell you what never to do, I tell you never to let others feed your fish unless you know they know what they are doing and are responsible people. Noone cares about your fish like you do
ENJOY LIFE IS SHORT
Michelle Silva said:
Does anyone know what licenses (other than occupational and aquaculture certification), you need in Florida to operate a small commercial aquaponic business?
What sort of licensing you need will depend a bit on your specific business and your county. If you are going to be raising the fish to sell or if you want to raise any "exotic" fish, you will probably need the state aquaculture permit and a county business tax recipt as well as zoning to sign off on your use of the location (at least that would be the case in Orange County where I am.) You may also run into some excess red tape when it comes to water use and waist water and they may have you paying extra fees and stuff there even through once you are all set up and cycled, the water use many not be so high, the initial set up or any time you have to dump and re-fill is going to exceed nor water usage for a "warehouse." This would be for simply running the system and selling the produce off site like perhaps at one of the weekend markets. I don't know the specific legality for selling the fish. I think the aquaculture permit might allow you to sell live and perhaps even whole on ice fish but if you are going to be doing any processing of the fish it becomes a whole new kettle of fish as they say since the health department will get involved even more. Sahib Punjabi said:
Anyone interested in understanding how Floating Raft or DWC commercial aquaponics systems work and how all the filters like swirl and particulate filters are arranged should check out the animation that shows the schematic of how and why these systems are built here: http://www.ecofilms.com.au/2010/07/13/how-floating-raft-aquaponics-...