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  1. Mike Wise

    Stocking for 20 gallon

    It depends on the tetra and the number. My mantra: a community tank is not a breeding tank.
  2. Mike Wise

    Breeding splash tetras....

    My practice with any tetra is that when I see fewer fry it is time to move them to a larger tank. I also use sponge filters which provide infusoria for the fry. That and dense clumps of plants (usually floating types or Java Moss) provide a source of live food.
  3. Mike Wise

    Adding a female for my male?

    anewbie's answer is not exactly accurate. Pair forming species can be very choosy with whom they form a breeding pair. They do not form mated pairs. As such it might take several attempt with several potential partners before a breeding pair forms. Unaccepted fish are often aggressively forced...
  4. Mike Wise

    Id species (sold as Apistogramma sp. "Ipiranga")

    Sounds like typical apisto behavior to me.
  5. Mike Wise

    Adding a single a. borelli to a community aquarium

    I have to agree with anewbie on this. It seems overstocked to me. The bottom third of the tank seems especially overpopulated. I have similar tap water values to yours. Here in Denver they add a buffer to the water to increase the pH to about 8 in order to prevent excessive pipeline erosion from...
  6. Mike Wise

    Stocking for 20 gallon

    You asked for a suitable pair of apistos for a 20H aquarium and then mentioned rare. None of the pictured species truly combine those requirements for an aquarist not experienced with apistos and breeding. I would suggest starting with A. borellii (Opal), a small adaptable species first. There...
  7. Mike Wise

    kribs polongwe

    You need to read: Lamboj, Anton et al. 2014. Revision of the Pelvicachromis taeniatus-group (Perciformes), with revalidation of the taxon Pelvicachromis kribensis (Boulenger, 1911) and description of a new species. Cybium 38(3): 205-222. PDF file at...
  8. Mike Wise

    Examples of sight lines?

    Is this a community tank or a tank for breeding apistos? It rare that it works out together.
  9. Mike Wise

    Stocking for 20 gallon

    I would think of one of the smaller apisto species or Dicrossus, Taeniacara, or Biotoecus.
  10. Mike Wise

    kribs polongwe

    According to Dr. Lamboj specimens listed as Kienke and Nange were collected at the same location as the type specimen of Pv. kribensis.
  11. Mike Wise

    kribs polongwe

    Common Kribs (Pv. pulcher) and Pv. kribensis are 2 very different species from 2 different locations. Way, way in the past Pv. pulcher was erroneously called "kribensis" in the hobby, probably because they were originally exported from the port at Kribi, Cameroon. The scientific community has...
  12. Mike Wise

    How long does it take for bacteria to break down nh4

    Ammonium ions, as I understand it, are too large to cross the gill membrane. Thus they are more or less non-toxic below pH7.
  13. Mike Wise

    How long does it take for bacteria to break down nh4

    It really depends on the bacteria and the bacterial load in an aquarium. In an established tank it should only take less than a day depending on aeration. BTW NH4 (ammonium ion) is different from NH3 (ammonia).
  14. Mike Wise

    Possible tank mates for a single agassizii?

    My preference would be the Keyhole. It is a cichlid with a gentle nature. My only concern would be the lower winter temperatures if they remained that way over a period of time. At the lower temperature for a species of fish its metabolism slows down which means its immune system does too.
  15. Mike Wise

    Sexing mcmasterai

    I will agree with MacZ on this, but realize that domestic strain females can show male characteristics.
  16. Mike Wise

    Is this a pair of Apistogramma cf. moae?

    More than likely due to being in an aquarium with no fry predators and a lot of food. I've also found that some species take more time guarding their fry than others.
  17. Mike Wise

    Wanted Dicrossus Foirni

    A rare import so it might take a while to find them. I had a pair back in 1984 when it was called Crennicara sp. Rio Negro. I personally haven't seen them since.
  18. Mike Wise

    My new upper Amazon tributary blackwater biotope

    Nice looking tank. Your idea of only 1 apisto is great. A. cf. agassizii Netz forms do occur in the Rio Negro, but only the lower part. C. duplicareus and Cardinals (until this tetra escaped from holding pens in Manaus) are only found in the upper Rio Negro.
  19. Mike Wise

    Rio Negro focused Biotope Tankmates

    A. diplotaenia is not found in the same habitat as discus, if that matters to you. They live among rocks and sand ripples in major river channels, but not in jungle-covered streams.
  20. Mike Wise

    Is this apisto hongsloi a female?

    The last photo shows a male. Your photos demonstrate the problem with using limited photos that do not show multiple pictures of the fish in different behavioral moods.
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