Q&A for How to Care for Zebra Danios

Not really. If you want to keep your tank's water clean, do not overfeed— remember that the size of the fish's eye is the size of the stomach—, do regular water changes and add carbon if the water is still not clear.

Yes, or the other fish may eat the babies.

Maybe get some hides and/or thick growing plants. If you already have these things, it would be best to separate the fish before they hurt each other.

You can buy them online or at a pet shop.

A school of six; however, give them a shady spot and have more males than females.

You would have to have a lot of space and lots of hiding places, as a danio would probably see the lobster as a threat.

Your tank would be sadly overstocked. You should move them to separate 5 gallon tanks or get a 20 gallon tank for them all.

Yes.

Sure! You'd still have more space in your tank for more fish after that, too!

It depends on the size of the fish. If the total length of the fish adds up to more than five inches then no, but 5 inches or less is okay.

Yes, zebra danios are a type of glofish. The bigger ones may be aggressive at first, but they will learn to get along.

The minimum size tank for 6 zebra danios (the minimum number you should keep in a school), is 20 gallons. Don't try to get by with fewer in less space, as they'll just be stressed and unhappy.

Yes, zebra danios and all fish in general need a filter. You need a filter because it decreases ammonia, which is toxic to fish.

No. These fish need some sort of filter or you will have to change the water a lot.

The only thing you can do to ensure that your danio will stop messing with other fish is to move them into separate tanks.

You should probably get a separate tank for your aggressive fish so they don't post a risk to any of your other fish.

Yes, of course! Goldfish get along well with danios. Zebra danios and goldfish are recommended to be with each other.

Twenty-five gallons is 95 liters.

Certainly! You could even keep 4 - 6. The general rule is one gallon per inch of fish. Zebra danios as adults grow to about 2 inches, so 5 would be the best option, but 6 is viable if you are willing to put in the work of cleaning the tank and changing the water.

As long as the other fish are community fish, but if a fish is pregnant separate it as other fish will eat its eggs.

I have a 3 gallon tank, and I put in 3 danios they are healthy and VERY active. Just be aware that these fish could kill other fish like guppies, even though this article states that this is okay. Once I put another guppy in, and it was killed by my danios in a day.

Yes, they can. Rummys can be very timid and danios are energetic and rambunctious, so it's normal to see some chasing happening.

Keep it in the quarantine tank and feed it regularly. The tail should grow back as long as it isn't being nipped constantly.

You would probably need more zebra danios as they are shoaling fish, but 3-4 gallons.

The general rule of thumb is one gallon of water per one inch of fish, so a ten gallon tank could house ten one-inch fish.

No, but do make sure that you put a heater in the tank and let the heater run for 24 hours before adding any of your danios.

They shouldn't. They are schooling fish, so you will need at least 6.

Danios should be in at least 10 gallons. The tank is overstocked with just the danios by themselves, so don’t get snails too.

You can put one zebra danio in per every 2 gallons. But you would need more zebra danios to make sure they aren’t stressed.

The known rule of thumb is one fish per gallon, but as they do not do well alone, I recommend two gallons per fish and minimum of five fish, so ten gallons for five is good.