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  1. Hi, Thanks for the reply. I will try painting one of the tanks first to see how good it will be. But in my older systems, I never had algae problems. The pump i use is 1500 ltrs per hour...strong enough to pump and filter algae in the growbed. Most time of the day, sunlight is not shining on the fish tank too. Water is actually almost clear. The bottom of the fish tank is also clean. Btw, here a pic of a friend's system. He didnt have time to harvest....;it became a forest. He planted snake jasmine nad madre aqua i think.
  2. 3 IBC continuous circulating tanks. Extended growbeds watered from the bortom to top every 6am once a day...flood and drain. 300 fish, 360 veggies capacity. Covered in 6m x 4.5m tent with clear plastic roofing. Will be covered around with fine net.
  3. Hi Gary, Thanks for the responses. I thought of that too....I installed a 3w air pump as a backup just in case the motor stops working. Plugged together with the water pump, the air pump also turns on and off too. So if the water pump stops working for some reasons, there will be no water in the float tank and the air pump will be continuously working till I get home. Fortunately too, my house never runs out of people. My family members are all knowledgeable of the AP systems we have. We all check the systems (water pump not working, air pump, etc.) and if I am not around, they know what to do. I keep spare pumps just in case. I have an auto-transfer DC-AC inverter connected to a 12V deep cycle battery. (same battery used for solar panels) About a month ago, because of a strong storm, we had a 6-hour brownout but with the above power system working from the 12v battery.... no fish died. I realize in cases of very long power failure, i will have a big problem cause the battery will probably last like 12 hours only. A bigger battery will lengthen it. Or if my money savings permit, I plan to install a solar panel.
  4. Hi Gary, Ah ok....but come to think of it. If its always on, thats $6 a month power bill but because of the on and off, its only $2 a month. Thats a savings of $48 a year. The pump costs $20...still a lot of savings. And my 2 pumps are still working after a year. Btw, each cycle is between 12 to 15 minutes. On between 4 to 5 minutes and off for 8 to 9 minutes. Thanks! Deo
  5. Hi Joey, I have 2 IBC tanks running 2 years now and so far the water pumps are still doing well. Seems like no sign of breaking down yet. These are RIO 1500LPH with ceramic shafts. I clean them every 4 months.
  6. Hi, I am Deo from the Philippines! Have been doing Aquaponics for around 3 years now. And I wish to share what I have to ensure an efficient bell siphon system. I designed a float tank made of a 2.5 gallon slim water container and installed a plastic bottle in it to turn off the water pump when the water starts draining to the fish tank. Once the draining is over, slowly the water in the float tank gets drained too and starts the water pump again. So I dont need to install a faucet to my water pump and find the right water flow. I only use a 25w pump and because of the float tank, the bell siphon starts instantly and turns off instantly. Please see my photos. I use pumice or lahar rocks as grow medium. We dip them in seaweeds extract for at least a week so the rocks will absorb nutrients and good bacteria before we sell the rocks to aquaponists. This is my 8 month IBC tank with a forest of a Herbal Tea called rhinacanthus nasutus. A great herbal tea to protect your liver from taking too much medicines and alcohol. This is my 6 month barrel system
  7. Hi Long, Yes they do grow out of the plastic media but not too much that I cant take them out of the pipe cause as soon as I see that they are growing large, I take them out. And I noticed that even when they are out of the growbed and on their own, they still grow fast. Then I sell them. I dont really use standard soil but a combination of compost/coco sawdust/rice husk. I do flood and drain. My fishes are healthy since they eat like maniacs....hehe especially the tilapias and pangasius. Well i guess the grow media leaks into the water cause it gets yellowish but isnt it because of the good bacteria in the water? which is also good for the fish? Best regards, Jetson
  8. Hi Ande, So sorry about it. My website is still so much incomplete and lousy. It came from a template. Am the only one maintaining it....hehe I should spend time completing it slowly. Thanks, Jetson
  9. Hi Long, Yes I have 42 pcs. 4" PVC pipes in the 1 square meter growbed (IBC tank) where I dip newly planted herbs & vegetables. These are planted in (compost/coco sawdust/rice husks) medium. Between these pipes are 1/2" pumice stones. A month ago, I converted 2 of my 4 IBC tanks into this calling it "plant booster system". I thought it very easy and portable to just dip in new plants in the pipes and after 1 to 3 weeks depending on the plant, I take them out easily and sell them. No prob with overextending roots anymore. I still keep the other 2 IBC tanks without pipes where I have a forest of Green Tea in 1 and new Green Tea cuttings in the other one. It just takes 1 week for new Green Tea cuttings to have roots. I grow around 40 new Green Tea plants every week. I just love Aquaponics! I wish I learned about it many years ago. Cheers! Deo
  10. Hi, I just want to share how I have been doing with my systems. Here in the Philippines, I started almost 3 years ago with 2 IBC tanks, planted lettuce and pechay and had tilapia. catfish and pangasius. Now I have 4 IBC tanks and 1 Barrel System and grown a long list of vegetables and herbs: lettuce, pechay, mustard, eggplant, okra, papaya, tomatoes, pepper, thai basil, sweet basil, tarragon, oregano, peppermint, spearmint, purslane, crab claw, lemongrass, lemon mint, etc. My amazing plant is Green Tea which is growing up to 10 times faster than in the garden. Very soon, I will start growing strawberries. I found a supplier of the Sweet Charlie variety which will grow in tropical countries like the Philippines. Wish me luck. I posted some pictures, please take time to view them. I have a website:
  11. I grow duckweeds (lemna) in a separate IBC tank and 3sqm pond with guppies (to eat mosquito larvae). Every know and then I feed them to my tilapia and pangasius...lowers my feed cost. Whats more, every now and then someone will call and buy duckweeds! great extra income too.
  12. Hmm..... no replies.... i guess there is really no exact formula for it. But here's my insight: the hourly flow rate (liters per hour) should be strong enough to provide enough oxygen to the fish and it depends on the size of the fish tank and the size of the grow bed. Heres my system (may be useful for analysis): I have four IBC tanks with 2 units running for almost 2 years already. My fish tank is around 400 liters and my bed is 150 liters. My water pump is 3000 lph but only running 1/3 of every cycle. It takes 3 minutes to fill the growbed and 6 minutes to drain to the fish tank. I designed a F&D (bell siphon system) that turns on the 3000lph pump (no faucet, no finetuning of water flow) while it is flooding the growbed and turns off the pump when the siphon starts to drain. When the growbed is fully drained, the pump turns on again. My fish tank is almost clear...just a little bit yellow (because of microorganisms) but you can clearly see the fish and the bottom....almost no residues. I guess because my flow rate is very strong and the water circulation is very fast. I use lahar gravel which is super cheap (given free sometimes), porous and lightweight. The only disadvantage is....the size is not the same....big and you need to filter out the tiny gravels before using it. Here in Manila, we have plenty of lahar gravels...spewed out from the Mt. Pinatubo eruption in 1991. Lahar is filtered to get the tiny ones and used to build hollow blocks. The larger gravels are thrown away by construction sites.
  13. Yes, because worms eat decaying matters and in their stomach, with the help of microorganims, break down the eaten matters to elements, organic compounds (vitamins). But remember, whatever the worms ate are what they excrete. What goes in is what goes out. If your system lacks iron, your worm should have eaten stuff which are rich in iron. If your system lacks potassium, your worms should be fed with bananas. What I do in my system is put different vegetables and fruit wastes like: bananas, guavas, watermelon, etc. I also put egg shells to provide calcium. I put them like 1 inch below the gravel. If you have the african night crawlers(ANC), try to check them early in the morning and you will see them holding parties where you digged in the wastes.