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Friend or Foe? Freshwater Fish Compatibility for a Happy Tank

By PetcoBlogger on Sep. 13, 2016

fish-compatibility-header.jpg

Whether you’re thinking of adding a fish to an existing freshwater aquarium, or planning for a new freshwater aquarium, there are plenty of aquatic life options to choose from: colorful rainbow fish, gentle swordtails, koi, African dwarf frogs, guppies, eels, barbs, sharks and so many more!

However, there are several factors that determine whether or not each species is compatible or not, including:

  • Water temperature 
  • Gender
  • Temperament 
  • Diet
  • Size
  • Activity level
  • pH levels

In order to maintain a happy, healthy, friendly freshwater fish community, it’s important to ensure compatibility. Use this handy guide to help you choose fish that can live together in harmony. 

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6 Comments
Comments
by Kfishy
‎01-10-2016 09:19 AM
Do you have a print out version of this?
Do you have a print out version of this?
Posted on Jan. 10, 2016
by
‎01-10-2016 09:26 AM

Hi Kfishy! Seeing that this is your first post, I'd like to welcome you to the community. Smiley Happy To answer your question, we only have the infographic available for online viewing at the moment. There isn't a printer-friendly version available at the moment. In the meantime, I hope you take the time to check out the rest of our community -- we have a variety of helpful blogs and articles for your reference!

Hi Kfishy! Seeing that this is your first post, I'd like to welcome you to the community. Smiley Happy To answer your question, we only have the infographic available for online viewing at the moment. There isn't a printer-friendly version available at the moment. In the meantime, I hope you take the time to check out the rest of our community -- we have a variety of helpful blogs and articles for your reference!

Posted on Jan. 10, 2016
by May
‎07-09-2016 12:14 PM

 I see a chart for saltwater fish, is there a chart for freshwater fish?

 I see a chart for saltwater fish, is there a chart for freshwater fish?

Posted on Jul. 9, 2016
by Dave Medeiros
‎11-08-2016 10:31 AM

I went to Petco in Manchester, CT. this past weekend for a guppy fish to add to my daughter's 3.5 gallon tank which now has just 1 guppy in it.  We bought the tank a couple of years ago from the same store about 2 years back; we were told it could support 3 fish; which we did buy at that time.  Since then 2 of the 3 fish died.  The young man working the fish department this past Sunday said, that size tank is only good for 1 fish and he would not sell me another fish.  The Petco staff needs to be better educated before they disapoint any more children with their lack of knowledge.  I went to a non chain pet store that had a staff that was correctly informed on fish and tank sizing and was able to purchase another fish.

I went to Petco in Manchester, CT. this past weekend for a guppy fish to add to my daughter's 3.5 gallon tank which now has just 1 guppy in it.  We bought the tank a couple of years ago from the same store about 2 years back; we were told it could support 3 fish; which we did buy at that time.  Since then 2 of the 3 fish died.  The young man working the fish department this past Sunday said, that size tank is only good for 1 fish and he would not sell me another fish.  The Petco staff needs to be better educated before they disapoint any more children with their lack of knowledge.  I went to a non chain pet store that had a staff that was correctly informed on fish and tank sizing and was able to purchase another fish.

Posted on Nov. 8, 2016
by Community Manager
‎11-08-2016 10:35 AM

@Dave Medeiros We regret to hear about your recent experience, Dave. We've gone ahead and forwarded this to our team; please let us know if there is anything we can do to help. 

@Dave Medeiros We regret to hear about your recent experience, Dave. We've gone ahead and forwarded this to our team; please let us know if there is anything we can do to help. 

Posted on Nov. 8, 2016
by HARRY VO
‎03-02-2017 10:41 PM

I love spending time in the ocean shooting a bunch of different things. I now dedicate a lot of my time to shooting empty waves because I love it – it’s fascinating. All the waves are different and the light you can capture reflecting on the surface of the ocean is amazing . Look forward to seeing the results on your website. Whatfishthinks

I love spending time in the ocean shooting a bunch of different things. I now dedicate a lot of my time to shooting empty waves because I love it – it’s fascinating. All the waves are different and the light you can capture reflecting on the surface of the ocean is amazing . Look forward to seeing the results on your website. Whatfishthinks

Posted on Mar. 2, 2017
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