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Daniel

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Everything posted by Daniel

  1. Daniel
    Cory mentioned the thermostatic mixing valve recently is this post:
  2. Daniel
    Yes! Emus are really creative and they are hard to keep them fenced in. This one escaped from an emu farm about six miles up the road and passed through my yard.
  3. Daniel
    I can barely make out @Maggie's fox above, but this 6 foot tall bird was a little easier to see. It was definitely a 'life bird' for me. Listen to the dialog at the beginning, my youngest son asks 'what do you think they eat?' Without hesitation I answer 'children'.
  4. Daniel
    I think when discus fry first become free swimming and begin to feed off the parents that, that is pretty cool. There are approximately a couple of dozen fry here that should be free swimming in the next day or two. Because this is a community aquarium, I expect them to get picked off pretty rapidly, but you never know. I hope there will be at least a little time were I can watch them feeding off the slime from their parent's bodies.
  5. Daniel
    I have mayfly larva and dragonfly larva in a couple of my aquariums. In the video above you can see the mayfly larva fanning its biological gills. These gills are an organ that allow the dissolved oxygen from the water to pass (by diffusion) into the mayfly larva's body and are an outgrowth of its tracheal system. They are covered by a thin layer of cuticle that is permeable to both oxygen and carbon dioxide. These fanning movements of the gills keep them in contact with a constant supply of fresh water. Dragonfly larva like the one in the video below differ from other aquatic insects by having internal gills associated with the rectum. As @Alesha says "Gross!" In the video below you can see the dragonfly larva contracting its abdomen in order to circulate water in and out of its anus. This rectal gill mechanism doubles as a jet propulsion system which is why they can move so fast sometimes when you try and catch them.
  6. Daniel
    No, my cats really do knock my lights in to the water frequently. That photo above was what I found one day after being out all day.
  7. Daniel
    In my experience it will grow vigorously both with and without CO2. In fact it could grow too vigorously over running the plants around it if you are not vigilant in pruning.
  8. Daniel
    Do you have an airstone in the hatchery?
  9. Daniel
    It is a lot like growing worms for bait like red wrigglers except white worms need to be keep at at 60 degrees Fahrenheit, hence the mini-fridge. They vaguely resemble tubifex worms, except they are white, and a little smaller. They have been a popular live food you can grow at home for several decades. Basically, you keep them at a cool temperature in a ventilated sweater box in dirt or peat moss and feed them, stuff like bread or yeast, etc. and harvest them on a continuing basis. You also need to start new cultures from time to time because the old cultures fade out after a while.
  10. Daniel
    @parker p, but you do have 2 logins, right @parker p and @parker?
  11. Daniel
    I would go for the guppies. What you could lose in generations, you will gain in durability and activity. Would this be high school? You can see why fruit flies are so popular, what with all the generations and all the traits you can get in a short period of time. Two other liverbearers that breed just as fast as guppies are Platys and Swordtails. They have interesting variable traits and a multi-factor sexual selection system that may add that extra zing you are looking for. Also @WhitecloudDynasty has an on going breeding project that involves white clouds, an easy to keep, easy to breed aquarium fish. He might have some good input. And here is a link to the Aquarist Podcast where @Randy has an interesting discussion about swordtails, platys and the genetics of sex in those 2 species.
  12. Daniel
    No, just add as needed. Your can test your nitrates and if they are really low, you can add more liquid fertilizer, but stop adding fertilizer if they start to go over 40 ppm.
  13. Daniel
    Yes, that is what I used for the same plants that you have. I also use Roots Tabs and Easy Iron.
  14. Daniel
    Bottom plant is a Cryptocoryne.
  15. Daniel
    Top plant looks like dwarf Sagittaria.
  16. Daniel
    I grown whiteworms in mini-fridge.
  17. Daniel
    I don't know how low the pond water temperature in my backyard pond here in North Carolina gets. But sometimes there is an inch of ice on the pond and that does not seems to hurt the cherry shrimp.
  18. Daniel
    My angelfish, discus, pygmy sunfish and Apistogramma nijsenni, all are tending either eggs or wigglers currently.
  19. Daniel
    My angelfish have often chosen sword plants, Amazon swords and other kinds of swords to lay eggs on.
  20. Daniel
    Here is a previous thread of DIY test tube racks:
  21. Daniel
    Cherry Shrimp in an outdoor pond in North Carolina.
  22. Daniel
    I put detritus (or mulm) under the microscope recently. For the most part it was broken down plant material and other biofilmy organic stuff full of protists and microbes. Oh, yeah and baby cherry shrimp too.
  23. Daniel
    How is the duckweed doing?
  24. Daniel
    Are you asking about water sprite? If so, almost any little green piece can survive and grow.
  25. Daniel
    I think Patrick mentioned Universal Rocks.
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