Can I put Legos in my fish tank?

The very short answer is “Yes!”. The longer answer is this: LEGO can go in an aquarium. Of course, you can dunk anything in water. The question is, “can LEGO be put into an aquarium with fish in it, and will the fish be unharmed?” Again, the answer is “Yes!
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Are Legos toxic in fish tanks?

So, is LEGO safe for your fish? Yes, using the precautions we show in the rest of this article, LEGO is safe for your fish because it is made from ABS plastic. ABS is very stable and does not release any chemicals to the water so it will not be a hazard for your fish.
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Is it safe to put LEGO in water?

No problem! Standard LEGO® bricks are not harmed by water. Some specially designed one-piece boat hulls will even float on the surface of water, although most LEGO® creations will not.
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Can you put any toy in a fish tank?

Most rigid plastic toys, ornaments and figurines are safe for aquariums as long as they are not painted and do not have any sticker decals on them. Make sure the object is well-cleaned and any stickers or adhesives are completely removed.
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Can you put plastic objects in fish tank?

When plastics are left in water for long periods of time they can release potentially toxic chemicals into the water, so they should be avoided in fish tanks at all costs. There are a number of exceptions to this if the plastic has been graded food safe.
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I Built a LEGO Aquarium for My Fish



What materials are fish tank safe?

As a general rule, terra cotta clay pots and other dinnerware are safe in your aquarium; however, those with lead and copper glazing should be avoided. Decorative ceramic mugs and plates can provide fun hiding places for your most timid fish as long as they meet the safety requirements.
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What decorations are safe for fish tanks?

Plain non glazed ceramic objects such as terracotta pots are universally suitable as aquarium decoration. Just examine carefully to ensure the object is indeed unglazed and not finished in a matte glaze or paint. When using broken pieces of pots be careful to avoid any sharp edges. These can injure both fish and owner.
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How do I entertain my fish tank?

Bubbles and Water Wheels

Your fish will love playing on them and bursting them. Bubbles can actually provide hours of entertainment, especially if your fish is bored. They are good stimulation and get them moving around the tank. You can also keep a tiny water wheel in the aquarium.
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What toys can fish play with?

Here is a list of some of our favorite Betta fish toys :
  • Mirror. ...
  • Floating Log. ...
  • Leaf Hammock. ...
  • Ceramic Log. ...
  • 5 . ...
  • Ping Pong Ball. ...
  • Aquarium Plants. ...
  • Train Your Betta to Swim Through Hoops.
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How do I make things safe in my fish tank?

How To Make Aquarium Decorations Safe (Top 10 Ways)
  1. Buy Decorations Designed for Aquariums. ...
  2. Clean the Decorations. ...
  3. Clean the Substrate. ...
  4. Choose the Right Natural Driftwood. ...
  5. Choose the Right Natural Rocks. ...
  6. Clean the Natural Driftwood and Stones. ...
  7. Use Decorations with Safe Materials. ...
  8. Use the Right Paint.
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How do you make LEGO waterproof?

I would try liquid latex (liquid frisket) which you can buy in most art supply store. This will not damage the bricks and is easy to peel off. You can apply it using a cheap throwaway brush, either in between the bricks (like a cement wall) or as a thin transparent layer on the whole hull.
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Do Legos float in water?

Lego bricks and Lego boats will often float, but not always. Legos are made of ABS plastic, which is slightly more dense than water and does not float by itself. However, some Lego bricks (and boats) are able to float when they have the right buoyancy, density, and surface tension.
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Are LEGO motors waterproof?

The motors used for the project can be purchased from LEGO's educational distributor, www.pitsco.com. The motors are waterproofed through a similar method as described in the book Build Your Own Underwater Robot, by Harry Bohm and Vickie Jensen. First, the motor is taken out of the LEGO casing.
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How do I know if my fish tank is overstocked?

How Do I Know If My Tank Is Overstocked?
  1. Bad water condition.
  2. Lack of oxygen.
  3. Inadequate filtration.
  4. Presence of algae.
  5. Unusual behavior.
  6. Fish being stressed.
  7. Prone to diseases that spreads quickly.
  8. May harass other fishes.
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Are Legos safe?

Throughout the LEGO Group's history, people have trusted us to provide safe, high-quality products that meet, and often exceed, toy safety standards around the world. Any new material we use is only approved after a rigorous safety assessment based on the highest standards.
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Are fish bored in a tank?

Just like any other pet, fish can become bored, too. And while they won't chew up your shoes, keeping them occupied will ensure they live a healthier life.
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Do LED lights bother fish?

Fish are not as reliant on light as plants. In general, aquarium owners can use incandescent, fluorescent, or LED lights for fish but should be aware of the heat issues that incandescent lights cause.
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What do fish like in their tank?

Goldfish like plants, variety in their food, a large, clean tank with a stress-free environment, lots of oxygen in their tank, nice cold soft water, other Goldfish as mates and some decorations in their tank.
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Can fishes watch TV?

If you are a fish and want to watch TV, this might be the invention for you. Researchers from the University of Queensland have developed an ultraviolet “television” display specially designed for fish.
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What do fish do when sleeping?

How do fish know when it's bedtime? It's pretty easy to tell when fish are sleeping: they lie motionless, often at the bottom or near the surface of the water. They are slow to respond to things going on around them, or may not respond at all (see some sleeping catfish here).
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Do fish ever get thirsty?

The answer is still no; as they live in water they probably don't take it in as a conscious response to seek out and drink water. Thirst is usually defined as a need or desire to drink water. It is unlikely that fish are responding to such a driving force.
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How can I decorate my aquarium for cheap?

Cheap Ways to Decorate a Fish Tank
  1. Plastic Plants. Plastic plants are one of the more popular decorations for fish tanks and are sold in a wide variety of colors, shapes and sizes. ...
  2. Artificial Driftwood. Artificial driftwood is usually made of plastic and is designed to resemble authentic driftwood. ...
  3. Rocks. ...
  4. Ornaments.
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Can I put marbles in my fish tank?

Marble is not a good idea for aquariums because it can alter the pH levels of the water in your aquarium and make it unsafe for the fish in it.
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Can you put a Funko Pop in a fish tank?

Seal your Pop! to a Fish Tank Decoration

Be sure to give your Pop! some time in between the last step and this one. It's best to wait at least 24 hours before continuing onto this step, to make sure that no sealant is removed from your Pop!. For this, you will need a fish-tank decoration heavy enough to hold your Pop!
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