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Fish/fish seem to be swimming bit erratic


please had tank up and running for quite a few weeks.  bought some white minnows x 6 had them one week they all swam in a schole.  this week bought x 6 gold ones however they all seem to be swimming erratic all over the tank up quite high to the top.  and then up and down at the side of the glass rather than across.

they seem to be ok they look healthy and are eating ok is it just the newness of their surroundings do you think please

It is called chasing the glass meaning that they are bored. Almost all fish do this. Did you know puffers chase the glass by spinning around in circles?

What is your tank size? With two schools of minnows a 20 gallon would be the right size. In a small or undersized aquarium then is necessary boredom is inevitable.

If you have an empty tank it will cause extreme stress and boredom. Minnows need fake/live plants to hide, places to swim in and out of, etc. I recommend changing the decorations in the tank at least once a month to prevent boredom, to ease any territorial fish's aggression, and its healthy for the fish.

I mean, if you had to live in a room with everything the same every day of your life without ANY new entertainment you'd grow pretty bored too.

- Ash


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Ash WolFF


My knowledge of fish ranges from freshwater and saltwater fish compatibility and care from easy livebearers to monster fish. I can help you set up a simple freshwater aquarium to a complicated reef tank. I would be pleased to assist anyone who is new to the aquarium hobby.


I have been in the aquarium hobby for eight years mostly dealing with large and small aquariums. I keep mostly monster fish (Arowana's, Large Cichlids; Oscars, and freshwater/saltwater eels specifically) but now that I am in college I am keeping a 30 gallon tropical community and a 45 gallon brackish aquarium while my father tends to the big monsters I left behind.

I'm on YouTube! My 30 gallon community posts are the only ones that are up so far. My Brackish tank is next! I'm on Yahoo Answers:

I am currently in college aiming for a job in Marine Biology.

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