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The Daily Insight

How do I prepare my new fish tank

Author

Olivia Owen

Published Mar 01, 2026

Remove tank/aquarium from the box.Put your tank /aquarium in position.Rinse all gravel and ornaments.Fill your tank.Turn on filter (and heater if applicable)Add in treatments.Let the tank cycle.Keep testing your water.

How long should you wait before putting fish in a new tank fresh water?

After purchasing your new aquarium, make sure to set it up, add water, substrate and plants and allow it to settle for at least 24 – 48 hours before adding fish.

How often should you change your fish tank gravel?

If you have a healthy and well-balanced fish tank, you may be able to go for several months without cleaning the gravel. However, even with a highly efficient tank, it is a good idea to clean gravel at least once every two to three months.

Can you put cold water fish straight into a new tank?

If your aquarium water is ready, we would advise stocking the tank very slowly to avoid filter overload – one or two fish to start with, then if there is no deterioration in water quality after 2 weeks, then you can add another one or two fish.

How do I know if my tank is ready for fish?

When Is My Tank Ready for Fish? Your tank is ready to add fish when your ammonia tests are quickly dropping over the course of a day, and your nitrite level has risen and subsequently dropped back to 0ppm. Once you reach this point, you are ready to add your first fish.

How long should I keep lights off for new fish?

1) Turn the lights off when acclimatising fish and keep them off for several hours afterwards so not to startle the fish. 2) Never add too many fish at once. Fish numbers all depend on the size of your fish tank. 3) Do not feed your fish for the first 24 hours.

Which is better tropical or cold water fish?

Tropical Fish Are the Best Choice for Beginners Yes, tropical fish will require that their water is kept somewhere between 20–25°C depending on the species, but tropical fish are almost certainly a better bet for the beginner. Why is this?

Should I vacuum my aquarium gravel?

As with all best maintenance routines, regular vacuuming, either once a week or once every other week, is best for your aquarium. Be sure to remove all your decor prior to vacuuming. You’ll be amazed how much waste settles under those pretty plants and castles.

Do you need a heater for cold water fish?

Unlike tropical aquariums, you don’t need to provide a heater for your cold water fish tank, however, it’s a good idea to use a thermometer, so you can ensure it’s kept at a nice comfortable, constant temperature for your fish. … You’ll need to ensure your cold water fish tank is cleaned every week.

How often should you completely clean a fish tank?

It’s a good idea to give all the equipment in and around your fish tank a solid clean at least once every six months. Doing this will help you keep an eye on how all your equipment is functioning, so that you can repair or replace it if you need to.

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Is it necessary to clean aquarium gravel?

To properly clean new aquarium gravel, it must be done correctly! Cleaning new aquarium gravel properly is an important first step in keeping water quality high; gravel dust and residue can harm or even kill fish. … These small particles should not make their way into a freshwater aquarium environment.

Do I need lights to cycle my tank?

Always cycle with the lights on, unless you want to kill off any life that’s growing on the live rock. Algae will grow whatever you do. Have the lights on 8-12 hours a day on a cycle (dawn to dust, if your lights have this feature). Keep your skimmer running through out the cycle and there after.

How often should you change fish bowl water?

Cleaning Your Fish Bowl To keep your fish healthy, you should change at least half of the water in your Goldfish bowl or aquarium every 3 days.

What is the easiest fish to look after?

  1. GOLDFISH. Yes, the goldfish is top on the list. …
  2. GUPPIES. Small and brightly colored, guppies are another favorite for beginner aquariums. …
  3. ZEBRA DANIOS. …
  4. BUSHYNOSE PLECOS. …
  5. NEON TETRAS. …
  6. MOLLIES.

Is it easier to keep tropical fish or goldfish?

Tropical fish are not difficult to look after and can actually be easier to care for than goldfish. Goldfish need to be kept in large tanks to accommodate their potential growth but even then, they can still easily need more space than this.

Can you mix temperate and tropical fish?

Some fish species and plants can thrive in both tropical and temperate environments. These set-ups will need to be similar to your standard tropical set up, with good filtration and aquarium lighting.

How many fish can I add to a new tank?

As a good rule of thumb only add up to 3 fish at a time to your tank. Once you’ve added the fish to your tank, wait until you’ve completed a nitrogen cycle and then you can add more fish.

How long should I wait to put fish in tank after cleaning?

If you have water conditioner to put into the tank you should be able to put your fish back in it after about 5 minutes. If you do not have water conditioner then you can let the water sit for about 8-12 hours and it should be ok.

What fish dont need filters?

  • Betta fish (Use a heater)
  • Guppies.
  • White Cloud Minnows.
  • Blind Cave Tetras.
  • Salt and Pepper Corydoras.
  • Zebra Danios.
  • Ember Tetra.
  • Pea Pufferfish.

Can you buy fish and tank on same day?

Don’t buy fish the same day you purchase the aquarium. Instead, set the tank up and let it run for a few days before bringing your first fish home. … Don’t allow store water to enter your aquarium when adding new fish. Don’t add too many fish at one time, especially in smaller or newly set up aquariums.

What temperature should my fish tank be?

A good range is 76° to 80°F (25° to 27°C). A few species need to be kept several degrees warmer, and some species require temperatures a few degrees cooler. A thermometer is vital. A stick-on type enables you to check the temperature whenever you look at the aquarium.

Do you take the fish out of the tank when cleaning?

Before you begin. It’s best to keep your fish in the fish tank when you clean. Removing them causes unnecessary stress for your fish, and you run the risk of accidentally hurting them. It is possible to keep your fish in the tank while you clean because you don’t need to remove all the water to clean the tank properly.

When should I turn on my reef tank lights?

Patience is going to be a virtue while building and maintaining your reef tank, embrace it now or forever be in regret. At the end of four months, flip the switch and turn the lights on. If you do run into an algae bloom or pest outbreak of any kind, simply let it run its course before adding corals.

Do fishes sleep?

While fish do not sleep in the same way that land mammals sleep, most fish do rest. … Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest. These periods of “suspended animation” may perform the same restorative functions as sleep does in people.

Are Bowls bad for fish?

Fish Bowls Restrict Oxygen Levels Undersized housing is bad for fish (or any animal) in any situation. However, bowl-shaped vessels are especially faulty. … In many cases, fish suffocate even in the cleanest water simply because oxygen cannot diffuse into the water as fast as it is consumed.

How often should I feed my fish?

How Often Should I Feed My Fish? For the most part, feeding your fish once or twice a day is sufficient. Some hobbyists even fast their fish one or two days a week to allow them to clear their digestive systems. Larger, more sedentary fish can go longer between meals than smaller, more active fish.