What does filter feeder mean and....

[reese1906]

Hello...

Many times I've read.....this particular invert or fish is a filter feeder. What exactly does filter feeder mean? And...

What are the benefits of keeping Filter Feeders?
What are the disadvantages of Filter Feeders?
Is there a certain number that you should have in your tank?

[cj7jeep81]

Filter feeders filter particles out of the water, and eat these particles. They are good in that they will help clean your water, but I am not sure about buying them. If you don't have enough stuff in your water, they will starve to death.