How to control guppy population

How-to-control-guppy-populationMany people who are breeding guppies face one extremely problematic problem. OVER POPULATION! They must have tries everything and still they would be seeing their guppies multiplying. Guppies are known as the million fish due to their multiplying a lot but you can control that problem if you know the right technique or know how to eliminate the whole problem.

  1. Adding larger predator fish to the tank

The most common and widely used methodology is to add a large predator fish in the tank along with your guppies. They would help slow down the process. If you have a lot of plants in your tank as well, then remove them all, or some as well. This is because you would find that many of the guppies like to hide behind the plants to hide from the predator fish. Remember to add another source of nutrition for your large predator fish as well so it doesn’t eat out all of your guppies. There needs to be a balance as well. Here is a list of all the fish species that you can introduce in your tank to prey on guppies and be a population control inspector

  1. Gourami
  2. Paradise fish
  3. Siamese fighting fish or betta
  4. Tiger barbs
  5. Zebra fish
  6. Angel fishes
  7. large Catfish
  8. Bluegill sunfish
  9. Separate males and females

The second trick is that you can separate off the male and the female from each other so they don’t have a chance to mate and produce even more fry. To make sure that you separate the female from the male, you need to be able to know the difference between the male and the female. Even if there is one male left in between the females, or one female left in between the males, then you will have a lot of Frys to deal with. Be extra careful in doing so because there is a high chance that you may miss a few of the male or female. You can always make use of separate tanks to separate both the sexes but if you don’t have any more tanks and have just one big one, then worry not. Just place a divider in the middle of the tank and then divide the two.

How to distinguish male and female guppies:

This is an extremely important part if you are making use of the second step. Take out each guppy individually and put it in another tank or even a fish bowl. Then take a magnifying glass and examine each and every aspect to see which one is a male and which is female. If you see a gravid spot on the guppy, then know that it needs to be put in the female side. Here are a few more indicators.

  1. The female guppies are a bit longer than their male counterparts. They go on till 2.5     inches.
  2. Females possess dull colored bodies but have brighter colors which enhance the tail
  3. Male guppies are very colorful and there is no end to the patterns and colors on their bodies.
  4. Male guppies have longer tails and tail fins as opposed to female guppies.

To prevent breeding, you need to make sure that they are separated either during the four week mark, this is when the guppy fry develops a gender or during the six week mark where the guppies usually become sexually active. These two times are the best time to separate them.

  1. Get an “overflow” tank for the excess

A temporary solution is to get another tank where you keep the excess guppies. Note this is a short term solution since the other tank might also fill up and you may need another tank as well.

  1. Sell, give, or trade

Another solution is if you can sell, give or trade your guppies. You can always ask around if people are willing to buy your guppies or if they are interested in getting them for free. You can also ask your local pet store if they would be interested in guppies and give you store credit in return instead of money. If you really want to give them away, than go online and advertise the sale or giving away of your guppy. You can also trade your guppies for another fish!

  1. Culling

This method is the last alternative and many are against it. Use this only if all other methods fails. It involves choosing the best of the lot and putting off other to sleep. Forever.

2 Comments

  1. Olivia May 15, 2017
    • Admin October 7, 2018

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