My Best & Worst Fish in the Juwel Rio 240 Aquarium

Welcome to the long-term review of the JUWEL RIO 240 community tank. After keeping this ecosystem for over 600 days and introducing 39 total species, including 18 different animal species, it is time to break down the best and worst choices for a large community setup. Choosing the right tank mates can make or break an aquarium, and long-term tracking highlights which species thrived and which caused major disasters. Become a channel member:    / @edgarsfishchannel   Let us begin with the worst additions to the tank, starting with the Mexican Dwarf Crayfish. Added to the community tank on day 165, these crayfish, named Mr. Krabs and Larry the Lobster, were intended to act as top-level predators to manage guppy fry populations. Unfortunately, they proved to be highly aggressive and territorial. They began fighting during unboxing, lost limbs, and immediately targeted long-finned fan tail guppies. Another highly controversial addition is the Assassin Snail. Introduced to control an overpopulation of bladder snails and Malaysian trumpet snails, Assassin Snails are incredibly effective at erasing pest populations. Within four months, they completely eliminated the bladder snails. However, they systematically hunted and killed smaller, beautiful Red Racer Nerite snails. Furthermore, when they run out of pest snails, they will target weak, sick, sleeping, or pregnant fish. Moving on to the best additions, Nerite snails, such as zebra and black nerites, are phenomenal. They are ultra-hardy, with some individuals surviving for six to seven years. They eat biofilm, large chunks of algae, and leftover fish food without reproducing uncontrollably, as their eggs require saltwater to hatch. Black Kuhli Loaches are peaceful bottom-dwellers that are highly beneficial for natural population control. While they generally leave adult fish alone, individuals with a higher prey drive will occasionally hunt slow or deformed guppy fry. Dwarf Otocinclus Catfish are tiny, shark-like catfish that stay small and spend their days cleaning surfaces of algae. They are entirely peaceful, do not bother other inhabitants, and do not reproduce in an uncontrolled manner. They are highly functional, though their behavior is relatively predictable and quiet. Ember tetras and Yellow Phantom Tetras are fantastic mid-level schooling fish. The yellow phantom tetras develop a beautiful yellow shine and a distinct black spot as they mature, while the ember tetras offer a striking contrast in size and color. They do not bother each other or the guppies, and they display an exciting, active feeding behavior whenever the lid is opened. The true centerpiece of this 240-liter tank is a robust, hybrid population of guppies and Endlers lifebearers that has been sustained for around 15 years. They are ultra-strong, healthy, and display shifting colors and fin shapes from generation to generation. As active, omnivorous surface-dwellers, they fill the upper water column perfectly. Regarding other invertebrates, Amano shrimp and Neocaridina cherry shrimp are great for algae control, but a large, heavily planted tank makes them difficult to spot. Shrimplets are heavily preyed upon by the fish population, meaning Neocaridina numbers may not expand the way they do in dedicated breeding setups. An unexpected but highly beneficial addition to the tank canopy is the aquatic springtail. These ancient creatures have existed on Earth for 400 million years and live directly on the water surface by utilizing surface tension. Requiring floating plants like Amazon frogbit to thrive, they act as surface janitors by consuming leftover fish food that accumulates where the fish cannot easily reach it. Managing a large aquarium requires adapting to challenges, such as protecting fish during intense summer heat waves, which unfortunately claimed the peppered corydoras and a large black molly in this setup over past seasons. What are your thoughts on adding ultra-hardy Albino Corydoras to the bottom section next? Let me know your experiences with these species in the comments below. If you found this long-term breakdown helpful, remember to like the video and subscribe for more deep dives into aquarium ecosystems. Chapters: 0:00 Introduction 0:46 Species #1 3:47 Species #2 9:43 Species #3 and #4 11:27 Species #5 14:25 Species #6 16:02 Species #7 16:46 Species #8 18:12 Species #9 and #10 20:07 Species #11 21:35 Species #12 and #13 23:09 Species #14 24:48 Acknowledgements Music: Atlantis von Audionautix unterliegt der Lizenz Creative-Commons-Lizenz "Namensnennung 4.0". https://creativecommons.org/licenses/... #fishtank #aquarium #aquascapelowtech ‪@juwelaquariumofficial3106‬