Frequent Aquarium Questions

• What kind of cold water fish can I keep in a 2.5 gallon tank?
  
  
• I have a 90 gallon tank with 2 Oscars. What other agressive fish can I put in the tank to make it more colorful and full?
  
  
• The red flame gouramis in our ten gallon tank is very aggressive. It constantly attacks the other fish. What could we put with it?
  
  
• I am wanting to start a 65 gallon tank and these are they fish that I want to stock it with: guppies, mollies, swordtails, angels, marble hatchets, corycats, zebra loaches, neons, rummy nose tetras, leopard danios, whiptail catfish, and fiddler crabs. Will these get along together?
  
  
• Can I keep them in my community tank with Dwarf Gouramis amd Siamese Fighting Fish, etc?
  
  
• Are these fish OK to introduce into my 55 gallon saltwater tank: 2 clownfish, Yellow Tang, Porcupine Puffer, Yellow Boxfish, Green Mandarin, and Long-nosed Hawkfish. Are all these compatible?
  
  
• I have a 75 gallon tank with guppy adults, juveniles, and fry. How many fish can I keep?
  
  
• I recently bought a 15 gallon tank. I'm interested in buying 2 blue cichlids. How many other fish could I put in the tank?
  
  
• How soon can I add fish to my 3-week old tank?
  
  
• We captured what appears to be baby trout from our local waters and put them in with our Betta. Now the Betta is behaving abnormally. What could be wrong?
  
  

• What kind of cold water fish can I keep in a 2.5 gallon tank?
  
  You can keep 1 small ornamental goldfish.
  
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• I have a 90 gallon tank with 2 Oscars. What other agressive fish can I put in the tank to make it more colorful and full?
  
  You can try Jack Dempseys, Red Devils, Texas Cichlids, and Green or Red Terrors.
  
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• The red flame gouramis in our ten gallon tank is very aggressive. It constantly attacks the other fish. What could we put with it?
  
  Your fish typically should not be that aggressive. The small confines of your tank is eliciting this behavior. I would also decorated the tank so that there are areas for shelter.
  
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• I am wanting to start a 65 gallon tank and these are they fish that I want to stock it with: guppies, mollies, swordtails, angels, marble hatchets, corycats, zebra loaches, neons, rummy nose tetras, leopard danios, whiptail catfish, and fiddler crabs. Will these get along together?
  
  All is fine, but I would refrain from purchasing the angels.
  
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• Can I keep them in my community tank with Dwarf Gouramis amd Siamese Fighting Fish, etc?
  
  The danger with keeping angelfish in a community tank is that if they do pair off, you might see some aggression towards the other fish.
  
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• Are these fish OK to introduce into my 55 gallon saltwater tank: 2 clownfish, Yellow Tang, Porcupine Puffer, Yellow Boxfish, Green Mandarin, and Long-nosed Hawkfish. Are all these compatible?
  
  I would not introduce the Yellow Boxfish and the Green Mandarin Goby. The boxfish is prone to cryptocaryn and the mandarin should only be introduced to well-established reef tanks.
  
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• I have a 75 gallon tank with guppy adults, juveniles, and fry. How many fish can I keep?
  
  The standard formula, taking into account growth, is 1 inch per gallon of water.
  
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• I recently bought a 15 gallon tank. I'm interested in buying 2 blue cichlids. How many other fish could I put in the tank?
  
  If your cichlids originate from Africa, it is only a matter of time before 2 fish outgrow their tank.
  
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• How soon can I add fish to my 3-week old tank?
  
  I would add 3 fish and test every week. When you see your ammonia and nitrite readings at zero, you can add a few more and let it cycle again.
  
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• We captured what appears to be baby trout from our local waters and put them in with our Betta. Now the Betta is behaving abnormally. What could be wrong?
  
  It's always a bad practice to remove fish from the wild and place them in your home aquariums. They harbor many diseases and parasites that wild fish can overcome, but not necessarily tropical ornamental fish from other countries.
  
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