TERRO T300 Liquid Ant Baits: Review

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Review of the TERRO T300 Liquid Ant Baits

The Terro T300 Liquid Ant Baits had 6781 customer comments and 298 answered questions on Amazon as of this writing.  I’ve read through the comments and condensed the results here.  I hope that this helps you when shopping for an ant killer.

Best Fea​tures

  • check Pre-filled and ready to go
  • check ​Will kill the whole colony
  • check Attracts ants fast
  • check Comes with 6 baits
  • check Proven to work well 

Item Specifics

The Terro T300 Liquid Ant Baits kills all common household ants.  It is pre-filled and ready to go to use as a bait station.  The patented design helps to prevent it from drying out.  This bait attracts ants fast.  Simply place the baits near ant trails or anywhere ants are numerous.  To increase your chances of killing all of the ants, us all 6 baits.

Can Work Very Fast

It may take a couple of weeks for the entire colony to be poisoned but sometimes it happens much quicker.  Here is one of the many testimonies of ants being eradicated, “Works very well and took care of my carpenter ant problem.  I used 3 of the 6 in the pack to kill a horde of ants and a queen that set up behind the dishwasher.  Ants were totally gone by day 3 and have not returned in over 2 days.”

Also Can Work Very Slow

You may need to have patience when waiting for the whole colony to die.  The ants need to take the food back to their colony and it may takes weeks depending on how many ants that you have.  Here is one comment on how long it took to get rid of the customer’s ants, “It does take days, and for me I left these out for weeks…Highly recommended, but patience is a virtue.”

Sticker In Bad Place

The manufacturer put a sticker on the top of the bait which makes it hard to see when the bait is empty and needs replaced.  Here a customers comments about the placement of the sticker, “The only minor thing I do not like with this indoor version is that the manufacturer put their sticker on the top of the bait, practically where you cannot see the inside. I prefer to be able to see the inside to know when the action stops, so to know when to take the bait away.”


  • plus Very effective
  • plus Ready to go – prefilled
  • plus Attracts ants fast


  • close Could take weeks to eradicate the colony 
  • close Sticker in bad place 
  • close Must be kept out of reach of children and pets 

TERRO T300 Liquid Ant Baits Conclusion

Terro T300 Liquid Ant Bait is one of the most effective ant baits out on the market today.  It works well because ants work as a team so the ants that eat the bait will take it back to their colony.  Some found that it eradicated their ant problem in just a few days while others said that it took several weeks.  It is very effective, but you may need to be patient.

Common Questions

Here are some top questions that I found for people considering buying TERRO T300 Liquid Ant Baits.

  • chevron-circle-right I have a baby in the house and I would like to use this product to kill ants in my house. Any precautions you suggest before I use this product?  Yes, do not let your baby near the bait trap no matter what.
  • chevron-circle-right When will the ants stop gathering around the trap and go HOME? I started out with a column of ants and now I have the entire colony hanging out! The ants normally will form a line from their nest and enter the trap. Soon, a line of ants should be going back to the nest and a line coming to the trap.  Within a couple of weeks you should not have any ants, as the whole colony will be killed.
  • chevron-circle-right When the bait is empty, should I put more? Or just wait for the ants to die down? I have to put the bait close to my bed. If there are still ants in the area then we would recommend placing out a new bait station.

Related Article: Best Ant Killer – Our Top Choices and Overall Pick

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