Do Fish Know When To Stop Eating? Most of the parents would feed their child until the child themselves refuses another spoon, and that’s how they know when to stop. But how about the fish? Do the fish really know when they should stop eating? How If they got overfeed? The answers to these questions are for everyone who has their pet fish or wants to keep them.

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The truth is, fish don’t really know when to stop eating. It is also possible they will continue to feed even though they are full. And, you just have to be very careful in feeding them the right amount of food. Overfeeding can lead to multiple complications and can also cause the fish to die. So if the fish don’t know when to stop eating, what should we do to prevent them from overfeeding? Read further as we answer all your questions as we dive into this article.

How To Know When Your Fish Is Full?

The fish itself will certainly not tell you when and how they will stop eating. But certain movements prove that they’re full already. You need to see and stop feeding as soon as you feel by their gestures that they’re completely full.

They Won’t Chew The Next Pellet

Throw the pellets or flakes one by one and notice your fish’s behaviors. They need more food if they catch the flakes tightly from you. If they slow down and aren’t quickly coming up, that means they’re full. If you continue to throw more pellets or flakes, the outcome of the water would be unclean due to that food’s decomposition and this can lead to severe health hazards of your fish.

They Won’t Be Excited When You Come Closer To The Tank

Your fish knows you definitely when you feed them because they swim more easily and get ready when you head up to the pool. Once the fish is finished they’re going to swim slowly even if you’re coming up to the tank to see them. They wouldn’t be very eager about your gesture, or the food you bring.

Too Much Decomposition Of Food

On the substratum, you will find too much waste food and fish poop, which ensures they don’t need a day or two to be fed. Do not fail to properly clean the tank as this residue will cause the tank water to become polluted with nitrates and ammonia.


It could be hard to feed your pet fish as they don’t know when to stop eating and even if they’re finished, you still can continue feeding them. Not feeding your fish too much is not that hard. You just have to hold on and adopt a schedule and everything will be in control. Not overfeeding your fish keeps them active and healthy because overfeeding will lead to many health issues and even death. Therefore, you need to know when the fish is starving and how much to give them the right amount of food.