VOLUME 90 / NO. 1 - February 2020

  4    Fish, Cardinal and Neon Tetra - The long route of the cardinal tetra
15    Killyfishes - The slow death of the striped killyfish, Aplocheilus lineatus (CUVIER & VALENCIENNES, 1846)
18    Aquarium construction and setup - An aquarium with depth (and the long road to it)
31    BEGINNERS' GUIDE - 'Moonfish talk' - Part 2
37    PRINCIPAL SECTION - Latin names?
44    Ponds - A new pond, winter and early spring
48    Choose  for you - New
50    Pufferfish - Experiences with the leopardfish (Tetraodon schoutedeni)
58    Cichlids, Apistogrammas - Why do Apistogramma females steal young brood from other females?
60   Freshwater needlefish - Freshwater needlefish (Microphis)

VOLUME 90 / NO. 2 - March 2020

  4    Rainbow fish - Craterocephalus stramineus
10    Aquatic plants - Recent imports for the lens
15    Fish, Cardinal and Neon tetras - The long route of the cardinal tetra (part 3 of 3 - conclusion)
30    Ponds - A new pond, early spring, part 4
36    Choose  for you
40    Aquarium plants - Aquarium plant groups
51    Water frogs - Hymenochirus boettgeri (African dwarf clawed frog)
54    Livebearing toothcarps, genus Phallichthys - Two small livebearing toothcarps from Costa Rica
60    Beginner's section - Three problems every aquarium enthusiast can avoid
63    Agenda March, April
66    Portfolio - Paracheirodon simulans
64    News from the market

VOLUME 90 / NO. 3 - April 2020

  4    Aquarium Plants Cryptocorynes – Cryptocoryne affinis: Not recommended for an aquarium with soft water!
  7    Tailored for You
10    Facts about Fish and Their Environment – Fish in Their Aquatic World, Part 1/10
34    L-Numbers – Care and Breeding of Ancistrus sp. L181
41    Freshwater Shrimp – The Crystal ‘Red’ and the Bee Shrimp (Caridina sp.)
47    Brackish Water Shrimp – Asian Fan Shrimp
50    The Testers – Test Report on the New JBL LED Lighting
56    Seawater Aquariums, Reef Aquariums – Remarkable Reef Aquariums: A Reef in Noordwijkerhout

VOLUME 90 / NO. 4 - June 2020

  4    Fish – Diseases | Small Headstander, White Spot, and UV-C
  7    Freshwater Fish – The Genus Nannostomus | Nannostomus mortenthaleri and Nannostomus rubrocaudatus
13    Red Aquarium Plants | How to Grow Red Plants and Achieve the Rich Tones We Desire
21    Dragonflies | Broad-bodied Chaser
24    Facts about Fish and Their Environment | Fish in Their Aquatic World 2/10
43    Tailored for You | Visiting Hristo Hristov in Sofia, Bulgaria
48    Aquariums and Ponds During the Corona Era | Crisis Time? Luckily, We Still Have Our Hobby…
54    Travel Report – Diving in Lake Tanganyika | Travel Report – Diving in Lake Tanganyika
60    Labyrinth Fish – Climbing Perch | Anabas testudineus
64    Strange, Remarkable, or Bizarre? | The Most Expensive Aquarium in the World

VOLUME 90 / NO. 5 - August 2020

  4    Gobies (Gudgeons) – The Genus Stiphodon: Unknown to Most Aquarium Enthusiasts, but Oh So Beautiful
14    Freshwater Shrimp – Black-White, White-Black to Colorful: Caridina breviata, a Beloved Dwarf Shrimp from Southern China
18    Catfish – Corydoras – Corydoras sterbai
22    Facts about Fish and Their Environment – Fish in Their Aquatic World, Part 3/10
28    Predatory Fish – About Biters (Predatory Fish) Suitable for Consumption? - Part 1
36    Paludariums – The High-Tech Paludarium of Hans Willems
40    Catfish – Name Change – From Brochis to Corydoras
44    Ponds – Water Plants – The Water Lily, the Queen of Pond Plants
51    Community Saltwater Aquariums – Remarkable Reef Aquariums: A ‘(WC) Sea Aquarium’ in Wassenaar
56    Barbus Species – Enteromius fasciolatus, a Barb from Africa
58    Disease Control and Research Using Zebrafish – Crossing Borders with Glowing Fish?
62    Tailored for You – By Han Witzel
64    Strange, Remarkable, or Bizarre? – But This Happens Daily Somewhere in the World

VOLUME 90 / NO. 6 - October 2020

  4    Biotope Report Ecuador – The Cloud Forests of Ecuador Through the Eyes of an Outsider
16    Headstanders – Black-Striped Headstander – Leporinus fasciatus
20    Harmful Plants for Shrimp – Anubias Toxic for Shrimp?
23    Planted Aquariums – A Beautifully Planted Aquarium
33    Facts about Fish and Their Environment – Fish in Their Aquatic World, Part 4/10
41    The Aquarium Plant Gallery by Aquaflora – Vivarium in Focus: Aquaflora
48    Terrariums with Poison Dart Frogs – Completely Hooked on Our Hobby
54    Fighting a Snail Infestation – How I Got Rid of My Snails Twice and… Ended Up with Algae Both Times!
60    Asian Cichlid Species – Etroplus canarensis
62    Tailored for You – Cryptocoryne affinis
64    75th Anniversary of AV ‘Natuurvrienden’ in Zwolle

VOLUME 90 / NO. 7 - November 2020

  4    A Different Special – District Assessments 2020
  5    Category Community Aquariums – National Champion 2019
  6    Category Specialty Aquariums – National Champion 2019
  7    Category Saltwater Aquariums – National Champion 2019
  8    Category Terrariums – National Champion 2019
  9    Category Ponds – National Champion 2019
10    The Dutch Association Goes Digital
11    Judging Freshwater – Community Aquariums
12    Category Community Aquariums – District Assessment 2020
33    Judging Freshwater – Specialty Aquariums
34    Category Specialty Aquariums – District Assessment 2020
54    Judging Saltwater Aquariums
55    Category Saltwater Aquariums – District Assessment 2020
59    Judging Terrariums
60    Category Paludariums – District Assessment 2020
65   Judging Ponds

VOLUME 90 / NO. 8 - December 2020

  4    The Origin of PaluZee
10    Something About PaluZee
11    Louis Uylen
12    PaluZee and Its Future
18    The Charm of the Small Marine Aquarium
20    Judging Experiences at PaluZee
26    Nymphaea gardneriana ‘Santarem’
28    What Aquariums Does PaluZee Maintain?
47    Fairy Tale Princess
48    Livebearers
56    A Journey of Discovery in the Aquarium Hobby
58   From Ditch Back to Medium-Sized Aquarium