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Recent content by dw1305

  1. dw1305

    blackwater tank cycling?

    Hi all, Cryptocoryne sp.? Cheers Darrel
  2. dw1305

    Again question on water hardness and fish needs as well as ph crash

    Hi all, I should have put in a reference - <"https://link.springer.com/article/10.1007/s00253-021-11529-y"> & <"https://www.cell.com/iscience/fulltext/S2589-0042(24)00294-3">. Cheers Darrel
  3. dw1305

    Again question on water hardness and fish needs as well as ph crash

    Hi all, I think this as well. Also if you have plants as they take up nitrate (NO3-) they supply some carbonate hardness - <"https://niade.com/planted-aquarium-ph-drift-kh-nitrate/">. Same for that. Cheers Darrel
  4. dw1305

    Again question on water hardness and fish needs as well as ph crash

    Hi all, I'd guess that wherever ammoniacal nitrogen (NH3/NH4+) and oxygen (O2) are available there will be a microbe that will <"oxidise that ammonia">, whatever the pH is. I'd also guess there aren't many situations where you could get very low pH and have oxygen available. The other issue...
  5. dw1305

    Again question on water hardness and fish needs as well as ph crash

    Hi all, Mrs Google is a bit behind with recent research into nitrification. She needs to have a chat with Ms Google Scholar - <"https://pubs.acs.org/esthag/article-abstract/47/24/14018/1481380/No-Nitrification-in-Lakes-Below-pH-3">. There is research looking at the effects of humic substances...
  6. dw1305

    Breeding splash tetras....

    Hi all, They are incredibly low maintenance, you can keep them ticking over on very occasional re-culturing, but you can bulk them up quickly if you need to - <"https://killis.org.uk/microworms/">. I use "Rolled Oats" as the culture medium. Cheers Darrel
  7. dw1305

    Dicrossus filamentosus

    Hi all, This was what the caudal filaments looked like when I got him last August - <"https://apistogramma.com/forum/threads/dicrossus-filamentosus.29980/#post-136004">. Cheers Darrel
  8. dw1305

    Dicrossus filamentosus

    Hi all, He doesn't have a lower caudal filament. I bought them at a local Maidenhead Aquatics, and there weren't any details about them. If someone lives in the UK? And thinks they are D. gladicauda? and wants to try reproducing them? They can have them. They have laid eggs (and these...
  9. dw1305

    Dicrossus filamentosus

    Hi all, I still have mine, one male, three females. I've been away from home for a month, so they have been on dry food. The tank was full of Ceratopteris when I got home, but the fish have been fine. The Axelrodia riesei look more coloured, but I don't know why. They will have got more...
  10. dw1305

    Atahualupa experience

    Hi all, I haven't kept them for a while, but that was definitely my experience. I've only kept them in very "weedy" tanks. cheers Darrel
  11. dw1305

    New A. agassizii suddenly inactive and not eating, zero clues

    Hi all, I've never had much success with a male and two females, it has never gone well for one of the females. If you have space, harems with more than two females, work - <"https://apistogramma.com/forum/threads/help-with-selection.25056/page-2#post-122272">. Have a look at this for the...
  12. dw1305

    Mendezi

    Hi all, @KeithK PC, rather than a phone. I can see your floatng plant and I'd let your Salvinia cover 3/4 of the water's surface. It doesn't really matter what your floating plant is, I like Pistia stratiotes and Limnobium laevigatum mainly for their roots. I have all three, but I use Amazon...
  13. dw1305

    Mendezi

    Hi all, I understand this. I'm not very good with fish, so I need all the help I can get. If you have fish that require very high water quality, plant / microbe bio filtration is much more effective at this That is sort of the point, the trees in the flooded forest are as much aquatic plants...
  14. dw1305

    Mendezi

    Hi all, Ideal, wanting to see your fish is so overrated. If I didn't like plants? I'd keep Hypancistrus sp. in tank with hundreds of caves and no light*. *This may not be true Cheers Darrel
  15. dw1305

    Mendezi

    Hi all, Honestly listen to Mike, he is "Wise by name and wise by nature". I'll nail my colours to the mast and tell you that "cycled" isn't a very useful concept generally and even less useful for sensitive soft water fish. Read the links in -...
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