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Everything posted by Cecil

  1. I bought some roofing EPDM from a local big box store a few years ago and it had in white letters, "Safe for Aquatic Use."
  2. The trout I hatched back in December apear to be definitely in the 5 inch range. This one is a brook trout. The pond also has brown and tiger trout. I may have seen a brown trout that was larger. I should be able to get another 5 inches or more on them by the time the pond water temps are so low in late fall to winter growth will be negligible. I'm hoping I can get my trout to harvest size of 4 to 5 pounds in two years vs. my three years previously. Previously I was purchasing them as yearlings at 6 to 8 inches. These are only a few months old and already almost 6 inches. I'm planning on hatching eggs again in the fall and putting them into a floating raceway in the pond in the spring to separate them from the larger fish. This way I can have fish of harvest size on an annual basis vs. every two or three years as previously as I had to completely start over.
  3. My snails are gone in the fish tank not long after I added some bluegills (Lepomis macrochirus).
  4. I have one RAS that got inoculated with snails by accident from a pond and they live in the moving bed filter with the veligers apparently moving into the fish tank itself. In no time they cover the tank walls by the hundreds if there are no fish in the system yet, or there is a species that is not interested in feeding on them. I've noticed it's easy to spread them with equipment also. If I have yellow perch (Perca flavescens) , bluegill (Lepomis macrochirus) or blue tilapia (Oreochromis aureus) in the system they snap up the snails as soon as they appear on the tank walls. Presently I have black crappie in the system and they have no interest in consuming the snails. I think adding some of the other species to the crappie tank would fix the problem but I don't have any of those presently available of the same size. Does anyone know of a treatment that I can make that would not harm the biofilter but will kill the snails and their veligers? Perhaps I need to source someone with small tilapia of about 3 inches. I can easily order them and have them shipped but shipping is expensive for the few I need. And the closest supplier is at least an hour and a half away. I actually have tilapia at 2 high schools but they are so large I believe they would consume the crappie. I could hatch some eggs but have no place to do it in, nor the time presently.
  5. Have seen some trout scattered in the pond. Some look close to 5 inches and quite healthy looking. Saw a couple that appeared much smaller. Either runts or brook trout vs. brown trout. They all still have parr marks. Water temp in the pond is gin clear and in the low to upper 50's. Will wait as long as possible to crank up the well due to cost and in injection of iron particles that may irritate the gills of smaller fish. A source once told me once they reach 4 inches small amounts of iron aren't a problem. Today I installed a membrance diffuser in the middle deepest area for mixing of the water column. (Depth about 10 feet). Will probably run it mostly at night depending on air temps. Once the well is running will run it 24/7. From my experience mixing the water column doesn't warm the water much when the well is running even when air temps are in the 90's (32 to 35 Celsius). Water temp of the well entering at 45 gpm is about 52 F. ( 11 Celcius). In mid summer below a few inches the water temp is 62 F. (16.7 Celsius) all the way to the bottom. Sorry no pictures. Would need an underwater camera for that.
  6. I received 3000 brook, brown, and tiger trout last Thursday (on my birthday) and some are now hatching. I'm seeing alevins that look like minute fry swimming around with a huge beach balls attached to them. Actually they aren't really swimming around. Just kind of dealing with the beach ball! LOL I'd love to share pics but can't take the chance of a flash doing anything bad to the alevins eggs. Had a SNAFU with the main RAS they are supposed to be in, and moved them to an egg basket (small laundry basket with the sides and bottom cut out with nylon screen siliconed it their place) into a 55 gallon drum of water which is fed by a 55 gallon drum biofilter, and another 55 gallon drum where the chiller runs water in and out. The chiller keeps temps around 53 to 55 degrees F. Biofilter is working great in the cold water with as of yet no ammonia or nitrite readings. A 2 inch PVC siphon does a great job of keeping everything moving in a circuit between the three barrels with a small mag drive pump pumping water to the biofilter barrel. Hope to move the eggs and alevins back to the RAS in a much larger basket soon. BTW initially I built three egg hatching jars and didn't care for them. It's much easier to pick out the dead eggs and remaining shells in the basket.
  7. Snails are gone in the fish tank. Bluegills snarfed them up!
  8. I have a population residing in the hollows of my plastic media in my biofilter. Amazing but they seem quite at home in the rough and tumble of the circulating plastic media! Not an issue with the tilapia, bluegills, and yellow perch in the system as they move into the fish tank itself they are immediately consumed. However run that system for a short period of time without fish and the tanks walls are covered with snails! The think is, I will be hatching and rearing trout in that system, and although I will do a full sterilization was wondering what my method of choice should be once the fish presently in he system are removed. I don't' want snails attached themselves to the eggs or even a remote possibility of the trout getting some kind of parasite or pathogen from the snails they are not adapted to. I have at my disposal a stock solution of potassium permanganate, bleach, and can easily obtain copper sulfate. I realize I will have to start all over again with cycling the media. Maybe treat with copper sulfate first, drain, refill, and then with bleach or PP?
  9. Yes and no. I have now added bluegills I seined up from one of the ponds, and if previous experience is any indication the snails won't last long once they migrate to the fish tank from the biofilter. Once the water warms up in the ponds I may move the bluegills and crappies (other species in the tank) to a floating cage and sterilize the entire system with bleach riding the snails once and for all.
  10. Yes much less than I thought but still far more than I need. 717. (717 fish were planted into the pond).
  11. Trout are now free swimming in the outside trout pond. I initially put them in a floating cage and noticed about 20 swimming in the pond. What the heck? Turns out I missed a seam in the floating cage and they were escaping. Since it wasn't practical to fix the fish cage with the fish in it, I decided to just free the fish. The first couple of days they kept circling the pond but have now settled down to the south side of the pond mostly in the vicinity of the pier where I have concentrated feeding them. I need to get stakes up soon to keep a Great Blue Heron out of the pond. They seem a little too deep for the heron to reach, but better safe than sorry. I need to also cross some lines across the pond in case a Kingfisher shows up.
  12. Thank you Ande. My mother-in-law was sweetheart and fun to be with. And she liked me! Not a lot of son-in-laws can say that! She fought kidney failure for the last two years and a heart attack and subsequent congestive heart failure was the final coup de grace. For those of you that have high blood pressure, you need to do what it takes to bring it down. It will destroy your kidneys and other organs, and dialysis three times a week is no picnic even for the toughest people.
  13. Probably won't be selling some of the fish to the prospective buyer for his pond. His new pond is having turbidity issues and I have referred him to a source for larger rainbows. From my experience the smaller trout do not tolerate turbidity well especially if it is continuous. No big deal as I will hold on to more trout and/l or plant more in a local stream with a blessing from the department of natural resources (permit required.)
  14. The cool thing is now that they are free swimming in the tank, I am not seeing the waste on the bottom of the tank I did when they were in the cage. The movement of the fish and the side drain - plus purging the bottom drain at least twice a day -- is removing solids, and moving the rest to the filters. When I drain the fish tank down to a few inches, and replace with fresh water, there isn't much waste left around the drain. What little there is, is pushed into the drain with a small aquarium net to be sucked out. They are also now actively swimming against the centripetal flow created by the discharge from the sand and gravel filter and the discharge from the chiller. This not only reduces their effort to get oxygen (ram ventilation), but it keeps them occupied and less likely to fin nip etc. And they are evenly distributed in the water column. I will include a couple more photos when I get the chance and access to the wife's iPhone camera. She is out of town right now due to the passing of my mother-in-law.
  15. Trout are between 3 and 4 inches. Feeding well every three hours. Act like they can't get enough to eat at feeding time. No illness but some seem to have slightly short gill covers. Could be genetic, a vitamin deficiency, or damage from moving them. One expert said the gills covers on the ends are very transparent at this stage so they may just look that way. They are now free swimming in the tank vs. a floating cage in the tank. Some will go into the outside pond in a couple of weeks, some will be sold, and the rest will be planting in a nearby stream with permission from my department of natural resources. I had to put a screen on top of the tank. I've had a few jump out!
  16. Thanks Ande.
  17. Don't think so. They are asking for publications.
  18. Thanks Ande I saw that. I'd like to join that group but it appears I need a published academic research paper to do so.
  19. Another picture:
  20. Trout are now in the three inch range. Look healthy but I'm concerned I may be seeing short gill covers on some. This could be due to a lot of things like water quality issues, inbreeding, pecking, damage from handling, or a vitamin deficiency. If it is an issue I'm hoping it's reversible once I get them into the pond.
  21. Trump had major investments in the pipeline. Of course he sold them off just before becoming president. We know where his interests lie though. The man is a walking conflict of interest. How anyone can believe this man is for other than coporate interests is beyond me.
  22. Ammonia is no longer an issue (reads zero), but nitrites remain high. Apparently the addition of NACL and the ammonia/nitrite/ nitrate remover is alleviating that as the fish don't seen to be bothered and are feeding well several time a day along with good growth. I'm not seeing any pathology or clinical systems of methemoglobinemia aka brown blood disease. I'm hoping that since ammonia has dropped to zero the nitrites will soon follow suit.
  23. You're in the lounge category, not aquaponics.
  24. It's all over. Big money won and the buffoon we elected for president had the final say. Native Americans once again get screwed.
  25. I think EPDM are fine as long as you scrub them down or age in water before using. As was eluded to in the research they may come with anti sticking agents etc. I know shrimp farmers that use Intex pools and don't even scrub them and claim they have never had any issues. I've used Intex pools for holding fish while seining and did not have any issues.