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Diving Aquarist

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  1. The method researched by Dr. Novak requires an under gravel filter that is connected to an air pump. To create the low oxigen concentration in the lower parts, the amount of water displaced by that filter is low. Slow moving water is the key. A 'BCB' basket is another option. This also relies on slow moving water. Another option is to just let diffusion do its thing, but that is a very slow process. I don't see letting worms etc constantly turning over the soil create anoxic conditions. To me it looks like it is a way to oxigenate the soil. The problem with the sponge filter theory, is that the filters get clogged with fish waste. This will start to rot and release ammonia etc into the water. If it is really clogged, you create anaerobic conditions, and you don't want that. The Biohome filter media is somewhat that idea, but the intention seems to be to create anaerobic conditions. I can't speak to the effectiveness of that media, but it is pretty expensive.
  2. I do not have experience with anoxic filtration yet, but for my next tank (hopefully they'll be done building soon) I'm going to get an anoxic filter in the form of a slow moving plenum. Dr. Novak has a whole bunch of videos on the system and the science behind it. He can be a bit longwinded and repetitive, but it is very informational. I've been following him for quite a while now, and can't wait to give it a try. If you don't want to mess up your current build to set up a plenum, you can always try it out for a year of so with a BCB basket in a filter. The only way to find out if it is worth it, is to try it, I guess. For me, the fact that actual scientific research has been done to show why it does what it does, intrigues me and I need to test it out. A BCB basket is very cheap to make, and an undergravel filter doesn't break the bank either, so if for some reason it doesn't work for me, it is no big loss. The downside is that it takes a bit of research to get the info and stuff you need, so it is not a solution you can just buy a complete kit for at a store. As far as I know, anoxic filtration does not produce hydrogen sulfide or methane, I think those are byproducts of anaerobic bacteria; the kind you want to avoid.
  3. Not silly at all! It is proof that the lilly is happy. I can't wait until my tiger lotus starts to bloom as well..
  4. With the smallest ones I use spirulina powder and 'baby flakes' that I crush using a pestle and mortar into a powder. For me, that works.
  5. I recommend looking into an anoxic (low oxigen) filtration system. Dr. Kevin Novak (a genuine scientist, not just a hobbyist) discovered this way of filtration for ponds decades ago, and supposedly it also works great in aquaria. He has a very interesting, yet often technical, Youtube channel where explains how to set one up and the science behind it. Why this system isn't discussed more is beyond me. In my new tank (and in a few rescapes) I will implement this system myself by using a plenum, and maybe a BCB in a filter. The benefit is that it is really cheap to set up and is pretty much no maintenance. It also works if you have fish that eat plants. I would avoid creating anaerobic environments at all costs, since those bacteria create toxic waste products.
  6. As far as I know, she is downscaling a bit, due to her personal circumstances, but not getting out of fish altogether.
  7. Coop, Chris Lukhaup, George Farmer, Kevin Novak, KGTropicals, Mark's Aquatics, Mark's Shrimp Tanks, More Aquarium Coop, pecktec, Prime Time Aquatics, Rachel O'Leary, Ryo Watanabe, Serpa Design, Tanner Serpa, Tiny Menagerie (horribly undersubbed!)
  8. Found them today in my fry tank as well.. startled me a bit, but quickly found out that they are harmless to my fry. The tank has quite a few daphnia in there as a 'stable' food supply for the fry (adults are still too big for the fry), so I doubt I can get rid of the hydra any time soon. I have a ton of bladder snails, so maybe they keep them in check.
  9. They look like mine, and those were sold to me as 'galaxy', but as far as I know, the naming is all over the place. Spawning is easy, since when they are happy, they lay eggs everyday. Put a spawning mop in the tank and remove it after a few days. For the hatching/raising, I'm using the same method as the person above. Once you are past the 'super small fry' phase, they are very easy to rear, since they are not picky when it comes to food, as long as it fits in their mouth.
  10. In my experience, plastic tubs are quite strong. A little bowing won't hurt it. It does depend on the quality, I don't trust tubs from the super budget stores that look like they'll break when you look at them.
  11. Some people love it, others hate it. I'm one of the latter. This stuff grows so fast that you can't control it, and when you get sick of it, you will be removing that stuff for months. Some duckweed made its way into my outdoor tubs, and I'm fishing it out like a madman. 1 small leaf you missed is all it takes to reinfest your tanks. It is awesome for removing nitrates etc from the tank, so it absolutely has benefits.
  12. I use a small pestle and mortar to grind the Tetra baby food that I have, since it still feels too large. The result is a nice powder. I throw my regular flake food in a blender to chop it up, in order to make dosing easier.
  13. I do the same thing. My 'fishroom' is in my living room, and even though I love a nice warm room, I don't feel like heating my room year around (I think they shut off the central heating in my apartment during the summer, so it's not even possible) to 28C+. I don't trust heaters at all, so the fish I keep will have to tolerate temps of around 20-25C. The only heater I use is in my brine shrimp hatchery. If that one breaks and cooks the brine shrimp, no real harm done.
  14. I doubt doing water changes will do harm to the fish, but from what I understand is that in Japan they tend to let the plants deal with the filtration. Using a low flow filter won't do any harm, though.
  15. I'm looking into setting up 'permanent' outdoor tubs for 'Japanese rice fish'/Medaka (Oryzias latipes) and maybe longfin white clouds (separate tubs for each species/colour variant). Kind of as a backup group for my small indoor 'tubs' that I also want to set up. Inside would be the linebreeding, and outside the backup/cull group. Winters with freezing temperatures for longer periods are very rare here nowadays, so I'm not really worried. Since my outdoor tubs are only about 20G each (heaviest I'm confident to put on my balcony), in an emergency I can always partially drain them and take them inside.
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