March 12, 2025

Freshwater Aquarium Fish for Beginners Easy Fish to Keep Alive

15 Low-Maintenance Freshwater Fish for Beginners With Pictures

Nitrate is the end of your nitrogen cycle and is toxic to fish when it builds up. Individual species will have different tolerances to nitrate levels, so know in advance what levels your fish can handle. Testing your aquarium water is essential for maintaining a healthy environment for your fish. A reliable aquarium test kit will allow you to monitor key water parameters and ensure they are within the optimal range for your fish.

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They are a good match for other peaceful types of fish that enjoy lingering in different parts of the tank. True to their name, the neon rainbow fish dazzles with its iridescent scales, particularly when they swim against well-planted tanks. Because of their timid nature, we recommend keeping these fish in groups of at least 6 individuals. These cute Catfish only reach around 2.5 inches in length and prefer to be kept in groups. They will be happy with a partner but will become most active in larger groups. These tiny shoaling fish are one of the most recognizable in the aquatics trade.

Cleaning Supplies

  • It’s better to feed smaller amounts more frequently than a large amount at once.
  • While frequent water changes are generally beneficial, changing fish tank water daily is usually not necessary and can even be detrimental.
  • Don’t panic; with care and observation, your fish will stay healthy and happy.
  • Wastes can pollute the water when degrading threatening the life of aquarium fish.

An aquarium that’s safe for fish will read 0 ppm (parts per million) of ammonia, 0 ppm nitrite, and around 10 ppm of nitrate. Therefore, it’s not recommended to keep fish in an aquarium without a running filter for more than a week and that’s pushing it. Generally, the fish for an aquarium of this size should not be an over-breeder or a fast-grower. A 5-gallon bowl with some live plants would make a good habitat for a single male Betta. Such small volumes of water get polluted by organic waste very quickly and sudden ammonia spikes, deadly for aquatic inhabitants, are often observed. Betta fish, which has a unique organ called the Labyrinth, is one kind of fish that can survive such low-oxygen environments.

But by choosing a filter that exceeds the capacity of your tank, you allow more water to be filtered, again, buying you some more flexibility in your maintenance routine. No matter which type of kit you choose, be sure to follow the instructions carefully and replace the reagents before their expiration date. Regular water testing is a crucial aspect of how to maintain a freshwater aquarium and ensure the well-being of your fish. They are schooling fish, thriving in groups that allow them to exhibit natural behaviors and enhance their coloration. White Cloud Minnows are tolerant of a wide range of water conditions, making them ideal for novice aquarists.

They all have long, flowing fins and bodies that are taller than they are wide. These fish are peaceful and require shoals but have been known to shoal with other varieties of Tetras. I hope this has helped you figure out the characteristics of the fish that require low maintenance. To check some more fish that remain small in size even in their adult stage of life you can click here. Keeping a fish in a bowl is the only viable option at times, but not every fish is suited to live in such a confined space.

In contrast, saltwater aquariums may demand higher salt levels to maintain appropriate salinity, usually around 1.020 to 1.025 specific gravity with marine salt. Recognizing these differences ensures you provide suitable environments for your fish. Another easy tropical fish for beginners to look after is the tiger pleco. This is another type of exotic catfish that spends its time feeding at the bottom of the aquarium. These bottom-feeders are good for keeping gravel in your tank free from algae and other bits of food debris.

Welcome to Natalie’s Nook! I’m Sam Bramston, the heart and soul behind this blog where every word weaves a new part of our shared journey. With a rich background in professional blogging, I've transformed my passion for storytelling into a vibrant tapestry of articles that explore everything from quiet musings to grand adventures. Raised in the lush countryside, I developed a deep appreciation for nature’s whispers and echoes, which later inspired my themes of reflection and discovery. When I'm not crafting new content or buried in a good book, you can find me hiking local trails or experimenting with landscape photography, always with a camera in hand and a story in mind. Join me at Natalie’s Nook, where our stories intertwine and every shared moment becomes a cherished memory.