Do fish tanks need substrate?

You don’t need a substrate. In fact, you can skip it entirely. An aquarium without any substrate is referred to as a bare bottom tank. A bare bottom tank has pros and cons.

Is substrate harmful to fish?

Large particle substrates allow more uneaten food and waste to penetrate into it leading to toxic build ups if not cleaned. Small particle substrates can compact which may lead to areas that lack oxygen. These areas can eventually release hydrogen sulfide – a substance that is extremely toxic to fish.

Do fish tanks need substrate? – Related Questions

Should I remove fish when changing substrate?

Really small fish that would be easy for you to miss, fish that will timidly hide instead of fleeing from your hand, fish that burrow into the substrate, etc. should be removed. Maybe you have some loaches but the other fish will avoid you, simply remove the loaches (good luck catching them by the way).

Does substrate need to be wet?

You need to add water to the substrate before filling trays because the peat in the substrate will expand when it takes up water. If you don’t add water before potting, the peat will expand with the first irrigation of the plants.

How long does aquarium substrate last?

Depending on the amount/type of soil used, water change schedules and growth cycles, aquasoils start depleting their nutrient stores significantly after 6 to 10 months.

What do you do with fish when changing substrate?

Changing the Gravel
  1. Turn filter off on the main tank.
  2. Fill holding tank 2/3 full of water from the main tank.
  3. Remove rocks, plants, and decorations and place them in a holding tank.
  4. Move fish from the main tank to the holding tank and cover the tank.
  5. Add enough water to the main tank to allow the filter to run.

Can I put substrate in my freshwater tank?

Sure. Your fish probably appreciate a substrate and it will provide a footing for any decor. However, it is significantly easier to clean your tank. If you are going to have a bare bottom tank, be sure to provide decor your fish can interact with.

Can I use substrate in a goldfish tank?

Goldfish don’t need substrate in their tank, but having substrate can provide a ton of surface area for beneficial bacteria to grow, creating a healthier environment for your fish.

What do you do with fish when changing substrate?

Changing the Gravel
  1. Turn filter off on the main tank.
  2. Fill holding tank 2/3 full of water from the main tank.
  3. Remove rocks, plants, and decorations and place them in a holding tank.
  4. Move fish from the main tank to the holding tank and cover the tank.
  5. Add enough water to the main tank to allow the filter to run.

Can I move tank with substrate?

Perform a 25% water change and lightly vacuum the substrate two weeks before the move. Lightly clean the filter two weeks before the move but avoid disturbing biological media. Set up clean, conditioned water at the new location – at least 25% of your tank’s volume – a day or two before the move.

How long does aquarium substrate last?

Depending on the amount/type of soil used, water change schedules and growth cycles, aquasoils start depleting their nutrient stores significantly after 6 to 10 months.

How do you clean a fish tank with a substrate?

What fish cleans substrates?

Keep reading to discover our top 10 favorite clean-up crew members that every freshwater aquarium should have.
  • Rainbow Sharks and Redtail Sharks.
  • Eartheaters.
  • Flagfish.
  • Corydoras.
  • Platies.
  • Snails.
  • Loaches.
  • Common Goldfish.

Are rocks necessary in a fish tank?

Rocks and wood provide a great deal of surface area for the nitrifying bacteria to colonize on. These bacteria help to eradicate ammonia and nitrites from your aquarium – important since both of these substances are toxic to fish.

What rocks can you not put in a fish tank?

Rocks to avoid include:
  • Shells or crushed coral (these are not ideal for most freshwater tanks, but may be used for African cichlid tanks, where higher pH and calcium hardness are desirable)
  • Limestone.
  • Geodes.
  • Marble.
  • Dolomite.

Are bare bottom tanks better?

Allows Increased Water Flow

By not having any sand, bare bottom fish tanks allow you to have significantly more flow. You can have powerheads at or near the bottom of the aquarium. You can also keep a higher flow without stirring up sand. This increase in water flow can help the health and growth of your SPS corals.