Heard this morning that grass carp will raid the bass nest and eat their eggs - is there truth to that?

tim....lots of message boards seem to say ....yes carp eat bass eggs and fry....but the American Carp Society says this:

Question: DO CARP RUIN THE NESTS OF SPAWNING BASS AND CAUSE A PROBLEM.

Do carp eat bass eggs? Wolfe et al. (2009) conducted an experiment in which Largemouth Bass were stocked into a controlled environment, both with and without Common Carp. The results showed that juvenile bass stocked into enclosures containing common carp survived at a higher rate than bass that were stocked without Common Carp. The experiment was then repeated with older juvenile bass and the results were the same. The bass had a higher survivability in the presence of Common Carp. The study also found that during the experiment, Common Carp were observed feeding in the clay bottomed enclosures but egg predation on largemouth bass eggs appeared to be minimal or absent, perhaps as a result of male bass guarding the nests. Male bass also fan the nest with their tails to prevent the accumulation of silt over the eggs (Wolfe et al. 2009). These findings indicate that Largemouth Bass can successfully spawn with Common Carp with little or no negative effects. The findings also indicate that carp pose little or no risk to the survivability of largemouth bass young.

https://americancarpsociety.com/science-misinformation-on-the-species

Interesting. I heard carp muddy the water, which would seem bad for sight feeders like bass

Grass carp and common carp are different animals.