Pond Boss Forums INTRO Questions & Observations Do Catfish eat decaying leaf matter?

Do catfish or any other pond critters eat some of the decaying leafs that collect in ponds after the autumn fall off?

Not likely. Most dead (tree) leaves are pretty much inedible by higher creatures. They're partially consumed by bacteria and protozoans,and can be found mostly intact years later.

Would tilapia be the exception to this? I seem to remember reading somewhere that leaves from certain trees were actually fed to tilapia. Ill try to check.

If anything processes the leaf litter it is aquatic dwelling invertebrates primarily immature insect larvae and nymphs. They are called shredders. If catfish ate organic debris on the bottom ponds with a fair number of catfish would be pretty clean and they are not especially those with trees nearby.

Are any crayfish detrivores?

I remember reading they are, but I cannot remember for sure. I have found some crazy things in catfish stomachs in the past. You seriously wonder why the heck they swallowed it!

I have a young pond and want to keep the leaf litter to a minimum...any advice? (besides cutting down the nearby trees) In 15 years, I don't want a pond with 18 inches of leaf muck resting on the bottom.

Aeration and possibly the addition of certain types of microbes should help keep bottom muck in check.

(Be advised that I know nothing about either topic so someone else should jump in)

Tilapia will eat leaves but it is way down the list of prferred foods.

Aeration is the best thing which provides for the creation of huge colonies of aerobic bacteria to break down the detritus.

I don't know but I used to wade out and pick up clumps of rotting leaves and throw them the bank when I was a kid. In no time crayfish would flip up to the surface which we used for bait. There were also dragonfly and damselfly nymphs.