Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173
Learning from Experience | Home Fish Aquarium Guide

Home Fish Aquarium Guide

Fishkeeping Information and Resources for the Home Aquarium



Looking for even MORE information on freshwater aquariums?
Try the My Freshwater Aquarium Secrets ebook.

My Freshwater Aquarium Secrets



« Responsible Fish Keeping

Why Are all my Plants Melting? »

Learning from Experience


Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

Warning: mysql_real_escape_string() expects parameter 2 to be resource, object given in /home/avery/homefishaquarium.org/public_html/wp-includes/wp-db.php on line 1173

We’ve had our 5 gallon tank setup and running for over a year now. (14 months.) When we started this second foray into fishkeeping I had studied and learned and felt much better prepared than our shortlived first attempt. My biggest concern was the small tank and going against the recommendations of keeping Zebra Danios in such a small tank. I had picked them due to most reports indicating that they are fairly hardy and so should survive our early mistakes. I resolved to do more water testing than before and at this point it is at a point where it can run for several weeks between changes. (This is a planted tank and so our nitrate levels never seem to get that high.)


When I started I understood that one of the warnings against small tanks are that the water parameters can go out of whack very quickly. So, I thought that was likely the reason for the warnings of 10-20 gallons and more for the danios. Of course, their schooling behavior is worth keeping in mind and believe it or not we had 4 danios in this tank at one point. However, our new arrivals succumbed to one malady or another. (One had half his face missing, which I didn’t notice until after it was in the tank and I assumed he came that way.) We started with two zebra danios, peanut and coral jr. Then we added a couple. Those two new ones brought ick along with them. (One started showing symptoms a couple days after we brought them home. So, we did a big round of medications and the one eyed fish and the other new one quickly succombed. Leaving us with our original two. Peanut is larger and was always chasing the others.

FInally, coral jr. had been harassed enough I suppose and expired. (We tried a sick fish tank in a plastic storage container, but it didn’t seem to help. We even got a replacement zebra danio which disappeared mysteriously a couple months later. I never found a trace of this one. Which left Peanut. still zipping around.

So, now it’s been probably 10 months or so since the demise of the second coral jr. we decided it was time to get some company into the tank. I wanted to get another zebra danio, but also got a platy. (My main reason for the platy was hoping that this new fish would have a taste for algae. We seem to get a bit of the green algae growing on surfaces lately.

So, now, less than 36 hours after introducing the two new fish….. the zebra danio whom we have dubbed “Bob” is now missing an eye. ! Yes, he’s been chased by peanut. I am sure he had two eyes going into the tank. He is missing one now. I’ve quarantined peanut using a cup for a while to try to help the situation. I rearranged the “furniture” and plants in the tank. It looked like they were both zipping back and forth and looked like it was friendly play, but …..

Anyway, I’ve been thinking about the recommendation for tank sizes for danios and it has come to me why they need a bigger tank. Not just because you need 5 or 6 for schooling. It’s not because they produce so much waste that a small tank can’t support them. It’s not because they will be “sad” in a small tank. It’s because they get cabin fever in a smaller space. Think about it. Think about how you are when you are cooped up in a small room with someone for days on end. Even if it’s someone you like it can drive you nuts depending on how long and how small the space is. So, their friendly play turns the corner towards a bit rougherplay and one of them loses an eye. I’m afraid the eye may not be all that’s missing

Of course, that’s what you get from experience. You get an explanation of WHY things are a bad idea. Unfortunately in researching sometimes the WHY of questions get left out.

On a similar note – the Platy is almost comical in comparison to the spastic duo. While they’re zipping about, it’s playfully whipping up and down the sides, occasionally stopping to look at the algae. I never gave platies much of a look before, but now am thinking we may be looking at more platies in the future.

I think the bottom line is not that zebra danios are aggressive psycho fish. At least not kept in the right space. In the right space they should be good fish. That’s why you probably need 20 gallons or so to make them more content. In smaller tanks (at least a five gallon) they can be aggressive and damaging to those of their own species. (I haven’t seen Peanut go after the Platy yet.)

PDF Printer    Send article as PDF   
Tags: , , , , , , ,
March 21, 2010 - 10:44 PM
Leave a reply

CommentLuv badge