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• Airline tubing
  ...y clear plastic and quite difficult to bend and easily kinks. This type is difficult to set up in a tank as it tends to curve and it affected by [[CO2]] in plan The better material is made of silicon. This tubing is very flexible and can remain straight if and is not affected by [[CO2]] in the w
  1 KB (226 words) - 19:35, 23 September 2008
• Acanthodoras spinosissimus
  :Difficult to visually sex. Mature females should appear more plump than males.
  2 KB (296 words) - 03:19, 13 December 2017
• Trigonostigma somphongsi
  ...ratios are generally unimportant unless breeding is desired, and sexing is difficult. Females may be slightly larger and posses a rounder belly. ...in home aquaria is unlikely as this species requires pristine, acidic, and very soft water for successful breeding, and fry require microfoods. For more i
  4 KB (524 words) - 03:19, 13 December 2017
• Test strips
  *Low levels can be difficult to read in poor light
  1 KB (171 words) - 05:07, 14 February 2011
• Chaetodon rafflesii
  :It is very difficult to visually sex this fish.
  2 KB (341 words) - 03:19, 13 December 2017
• M and R Dogfish
  ...licy of not selling fish which are either impossible to keep, or extremely difficult to keep, or that grow to a size which is inappropriate for the aquarist.
  2 KB (240 words) - 03:47, 14 February 2011
• Considerations in Fishless Cycling
  None of the early testers realized how difficult it could be to find or identify “clear” [[ammonia]]. So much ammonia-b One very embarrassing pitfall was completely unforeseen. We all knew that [[nitrifi
  11 KB (1,790 words) - 02:09, 14 February 2011
• Chaetodon kleinii
  :Difficult to visually sex.
  3 KB (382 words) - 17:29, 15 June 2020
• Amblyceps mangois
  :Difficult to visually sex.
  2 KB (317 words) - 03:19, 13 December 2017
• Lumbriculus variegatus
  :All aquatic animals (fish, frogs, etc.) seem to like this food. It is very readily taken. ...t of oxygen in the water, since worms will live on the bottom. It is often difficult to achieve the same amount of yields as other forms of live food, but they
  3 KB (477 words) - 03:45, 14 February 2011
• Procambarus sp "marmorkrebs"
  ...fferent anterior swimmerets than posterior; in females, all swimmerets are very similar. ...of 1 inch PVC tube (with one end closed) works fine. Crayfish feel safe in very tight space. These creatures are nocturnal and will eat sleeping fish.
  5 KB (728 words) - 14:40, 8 August 2011
• Synchiropus picturatus
  :Their diet can be their downfall in captivity, they're known to be very fussy eaters, primarily feeding on copepods and amphipods. Some may take fr ...duals starve in captivity. This is the main reason why it is rated as very difficult. While commonly found in LFS's, and not particularly expensive, most indivi
  5 KB (755 words) - 17:47, 19 March 2024
• Fish Profile1
  ...er(JAW)/Very Easy(VE)/Easy(E)/Moderate(M)/Challenging(C)/Difficult(D)/Very Difficult(VD) |availability = Very Common(VC)/Common(C)/Uncommon(U)/Rare(R)
  2 KB (198 words) - 13:04, 8 August 2011
• Acropora anthocercis
  |difficulty = very difficult
  2 KB (224 words) - 15:29, 25 March 2019
• Taenianotus triacanthus
  :It's very difficult to sex Leaf Fish, and breeding in captivity has so far been unsuccessful. :Difficult to feed. Will need lots of patience to get this fish to take frozen food. W
  4 KB (551 words) - 03:20, 13 December 2017
• Acropora aspera
  |difficulty = very difficult
  2 KB (218 words) - 15:30, 25 March 2019
• Leiarius marmoratus
  :Difficult to sex visually, females are said to be more heavily set than more slender ...ng that fits in its very large mouth. Best kept with similar-sized fish in very large aquaria, such as ''[[Oxydoras niger]]'' and large Characins or South
  2 KB (256 words) - 03:20, 13 December 2017
• Venting
  ...between male and female more difficult to distinguish. This means there is very little difference in vent size and will require a little more experience to
  3 KB (510 words) - 05:16, 14 February 2011
• Dendrochirus brachypterus
  :It's very difficult to sex Lionfish, and breeding in captivity has so far been unsuccessful. :Difficult to feed. Will need lots of patience to get this fish to take frozen food. W
  4 KB (576 words) - 03:20, 13 December 2017
• Aquarium Microbes: Part 1: Nitrification
  ...ssive populations of bacteria and other microscopic life forms that are so very important to our aquarium systems. I hope that I can clarify the some of th ...1 ppm for our purposes. Ammonia is toxic as low as 0.25 ppm as other than very short-term exposures. Between 0.5 and 1.0 ppm there can be long term or per
  19 KB (3,335 words) - 00:50, 14 February 2011

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