notagain
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Posts posted by notagain
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I would also think again about replacing the river rock with coco coir, its ph neutral and cheap. You could build support systems for your heavier plants to grow.
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I know it sounds crazy but I have read about people feeding their fish with dry dog food as it has a high protein content and is a balanced mix of other nutrients.
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Again i dont have much exp. with aquaponics except working with some others doing it but I do know it helps to keep different plant species in different systems/tanks due to different nutrient uptake needs and different growth rates, but maybe this doesnt apply to aquaponics.
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7 minutes ago, Time to grow said:
Sorry, i don't know anything about painting a container to make it food grade.
Paint the outside to keep light out to stop any algae growth.
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I would seriously research using chunk coconut coir for my media as its cheap and ph neutral. But yeah it could be your tanks leaching into the water affecting the ph. Im not against aquaponics but it is much more complex compared to hydro i have kinda shied away from it. What are you growing for plants ?
http://www.backyardaquaponics.com/forum/
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https://www.duan-daw.com/category/32/ไส้กรองน้ำ/ไส้กรองน้ำแร่-mineral.
https://www.duan-daw.com/category/31/ไส้กรองน้ำ/ไส้กรองเรซิ่น-resin-softener
I buy all my filter needs from these guys,cheapest in thailand and have anything you need.
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Take a sample of your rocks put in a jar then fill with vinegar. It you get a lot of fizzing and bubbling then its going to be a problem. the initial ph test will not tell much as the lime/calcium will continue to leach out over time. Using coconut coir as a media is an option too as it is cheap.
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Might as well buy something like this and you get 50 tests.
https://aquaponics.com/store2/aquaponics-water-quality-test-kit/
I would seriously consider the dwc system over the nft/hydro tube system due to the heat conditions here. dwc was developed specifically for the tropics. Kratky method is also a great system being so simple and foolproof. Remember the larger volume of water the easier it is to keep temps down.
http://aquaponicsnation.com/forums/ Lot of good read on here.
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Carliyai - if you decide to use bell siphons in your grow beds this degign seems to be a winner.
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You might want to due a lime/calcium test on the river rock as it could wack your ph levels way out of balance.
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23 minutes ago, ThaiBunny said:
However panels don't last that long
If you buy quality panels (kyocera, panasonic, etc.) they will have a 25 year warranty and these companies have been around a long time and will honor their warranty, not so much with many chinese off brands with a 1-5 year warranty and the company may be gone by then. Unfortunately here in thailand you cant get good quality equipment due to the high import duties unless you want to pay for it. I have only seen deep cycle lead acid batts here for solar, whereas back home the battery technology/types are way more advanced with much longer life (and about as cheap as a lead acid here). I dont like tesla but their lithium powerwall packs are on my maybe list.
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Good points except I would never live in Pattaya lol. If you have the xtra cash and want to put in solar thats great, like I said I like solar and will install some when I relocate back home soon mainly due to the generous tax incentives and power sell back to the power company. How was the process of getting the pea approval for tying into the grid and what kind of feed-in payback do they have now ?
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Unfortunately village water pressure may be a problem at times for you with drip irrigation even with pressure compensating drippers. I would use a pump with 20mm or 25 mm feed line with adjustable rate drippers. Crank it up then go around to your plants and adjust your flow rate to each plant then put a timer on it. If its a large system you might want to zone it out in sections to water at different times depending on your flow rate capacity. Dont use the underground drip tapes they sell here, they clog up fast and are a waste of money. The adjustable rate dripper heads can be screwed off and cleaned easily. Also A screen mesh filter at your water source is a must. A pressure reducer if you can find one is nice too. You can buy most everything you need on lazada and DO Home has a good selection too.
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I like solar but be real unless it is subsidized by a gov. as in the west and you can sell back to the grid easily at a good price (not in thailand) or you cant get power from the grid its a waste of money. Oh yeah or you just want to feel good about being green which is a fallacy as those silicon cells, metal frames, sealants, batteries etc. all have a major environmental cost too
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Yes plastic is good for killing off the weeds, some say clear plastic works better. I would start out slow on the aquaponics as it really is a steep learning curve trying to get/keep the system in balance with everything involved and also put in a small hydro dwc system to have some production while you learn. higreen has some nice dwc units to grow greens that are basically foolproof. Getting too hot now for nft.
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Just a few ideas.
1. put down some gravel and cover with sand then top with some landscape fabric, you will have drainage problems where your gh is located and walking around in a muddy gh sucks and provides a perfect growth environment for bacteria and diseases.
2.Reinforce those corners with a 45 degree angle pipe, that is where your wind stress/load will be greatest.
3. I dont know what you are growing have some tables built with perforated tops for drainage, you can even stack them for vertical levels to increase production.
4. If you have power available hang some 18 inch fans for air movement, plants love it.
5. Remember the tighter the plastic the better
6. You might want to put in an RO water system to help in your plant nutrient uptake needs, they are not expensive if you build yourself, water is a key factor in good hydro growth. Link below to buy all the parts
7 Forget about aquaponics.
8. Maybe an overhead misting system depending on what you are growing.
This where I buy my grow stuff, good selection and prices - http://www.higreenshop.com/
Water filter supplies - https://www.duan-daw.com/
hydro/aquaponic gardening
in Farming in Thailand Forum
Posted · Edited by notagain
edit/addition
https://globalaquaponics.wordpress.com/2014/04/29/demystifying-aquaponics-coir-vs-hydroton-in-the-system/
Many ways to run an aquaponics system.
https://aquaponics.com/methods-of-aquaponics/
http://www.backyardaquaponics.com/guide-to-aquaponics/running-of-the-system/
I think alot of the problem here is the system hasn't been run long enough to get a good balance, including bacteria buildup to help break down the nitrate-nitrite-ammonia components for survival of both plants and fish. I have seen people spend two months getting their water conditions and bacteria counts up before even adding any fish or plants. Again im not against aquaponics but its not as simple as it seems especially getting a long term successful production cycle going.