Some essential accessories needed for an aquarium include a filter to keep the water clean, a heater to maintain a stable temperature, a thermometer to monitor the water temperature, a light to provide illumination for the plants and fish, and a water conditioner to remove harmful chemicals from tap water. Other useful accessories may include a gravel vacuum for cleaning the substrate, a net for catching fish, and decorations such as rocks or plants to create a natural environment for the fish. **

Fish that belong in a technology-free aquarium are those that do not require specific water parameters to be monitored and adjusted using technology. Hardy and low-maintenance fish such as bettas, guppies, goldfish, and white cloud minnows are good choices for a technology-free setup. These fish can thrive in a simple aquarium with regular water changes and basic care without the need for advanced equipment like filters, heaters, or air pumps. **

Animals that are suitable for a technology-free aquarium are those that can thrive in a natural, low-tech environment. This includes hardy freshwater fish such as guppies, mollies, and tetras, as well as snails and shrimp. These animals are able to adapt to fluctuations in water parameters and do not require advanced filtration or lighting systems to survive. Additionally, live plants can also be included in a technology-free aquarium to help maintain water quality and provide a natural habitat for the animals. **

Yes, you can buy fish and accessories for an aquarium at Bauhaus. They offer a variety of aquarium supplies such as tanks, filters, decorations, and fish food. Additionally, some Bauhaus locations may also have live fish for sale. It is recommended to check with your local Bauhaus store for specific availability and selection. **

To set up a planted aquarium without technology, you can start by choosing hardy and low-maintenance plants such as Java Fern, Anubias, or Java Moss. Use a nutrient-rich substrate like potting soil or gravel mixed with laterite to provide essential nutrients for the plants. Regular water changes and natural sunlight or a simple LED light can help the plants thrive. Additionally, adding natural decorations like driftwood or rocks can create a more natural environment for the plants and fish. **

To set up a planted aquarium without using technology, you can start by choosing the right substrate for your plants, such as nutrient-rich soil or gravel. Next, select hardy and low-maintenance plant species that can thrive without the need for CO2 injection or high-intensity lighting. You can also create a natural balance in the tank by adding live aquatic moss and driftwood, which can help to maintain water quality and provide a natural habitat for beneficial bacteria and microorganisms. Lastly, regular water changes and proper maintenance of the aquarium can help to keep the plants healthy and thriving without the need for advanced technology. **

Yes, it is possible to operate an aquarium with only moss and without technology. Moss can act as a natural filter, helping to maintain water quality by absorbing excess nutrients and providing a surface for beneficial bacteria to grow. Additionally, moss can provide a natural habitat for small aquatic organisms and can help to oxygenate the water. However, it is important to monitor the aquarium regularly and perform water changes as needed to maintain a healthy environment for the aquatic life. **

For a fighting fish in a 15-liter aquarium, the essential accessories needed include a heater to maintain the water temperature between 75-82°F, a filter to keep the water clean and oxygenated, and a thermometer to monitor the water temperature. Additionally, a hiding spot or plants for the fish to feel secure and reduce stress, and a water conditioner to remove chlorine and other harmful chemicals from tap water are also necessary. It's important to ensure that the accessories are suitable for the size of the aquarium and provide a comfortable and healthy environment for the fighting fish. **