Depending on the placement of your tank, and the type of food you use, cleaning your tank can either be a daily routine or something you do weekly.

Things that affect the cleanliness of your tank:

  • Natural Light (and therefore Algae Growth)
  • Uneaten Food
  • Water Changes

Natural Light (and therefore Algae Growth)

One of the most common things seen in a “dirty” tank, is the growth of algae. This is a natural occurrence if the tank is placed close to a window, whereby natural light can be shining directly on the tank.

Consider placing your tank in a location where this won’t occur, to allow for less cleaning requirement, and better water quality for your jellyfish.

Note: Unlike normal fish tanks, there is no regular algae growth from fish waste. Jellyfish do not produce waste (they don’t have a digestive system), and so there should be no algae presence unless the tank is in direct sunlight.

Uneaten Food

Over time, the bottom of your tank will display the results of food that your jellies didn’t eat. This will eventually become a problem, if it’s allowed to stay there – as it will begin to rot, and cause ammonia rates to rise.

To avoid this, first try feeding Live Food instead – we sell Brine Shrimp Hatching Kits which make this easy. Live food will continue to swim around the tank, and so much less of it ends up on the bottom of the tank.

If you prefer feeding Dried Foods, anticipate that the presence of uneaten food will be a lot higher. You should consider using a pipette or syphon to remove uneaten food either daily or every other day.

Water Changes

Weekly water changes are an important part of keeping a jellyfish tank. Without this process, eventually your water will not be fit for the keeping of jellyfish, and your jellies’ health will begin to suffer.

We recommend a 10-25% water change weekly (2 litres if using a Jellyfish Art Cylinder Nano tank) to ensure your water is kept in check.

Add 1 cap-ful of JellyBio Maintain at the same time as this weekly water change, to keep on top of your all important nitrifying bacteria, too.

Read more on our Water Change Help and Advice article.