Originally Posted by
nc0gnet0
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Bloodworms vs blackworms vs beefheart. IMO, protein is protein, and as long as it is highly digestible for the fish and they get enough of it, it really shouldn't matter. Water quality is always going to be of the utmost importance in regards to good growth rates, and what you feed can impact the water quality quite a bit. I have raised many fish without beefheart, and do not have the problem with them topping out at 5", but I do not feed any one thing exclusively.
Any fish fed solely one food, especially when young, can lead to it's refusal to eat other foods and is not a good practice. Bloodworms do seem to be one of the easier foods for fish to become "addicted" too, and as such can get a bad rap. I primarily only feed bloodworms to my breeding pairs when I will not be able to do a water change within a reasonable amount of time after feeding (aka in the morning before work). Beefheart seems to be the worse at fouling the water if left uneaten for any period of time, but it has the major advantage of also being the most economical. Beefheart mixes can be formulated to also be close to a complete diet. FDBW's seem to be a little bit of both worlds ime, and as so I feed them as a staple.
But the question is, if you are this concerned about the well being of your fish to ask questions about their diet, why do you refuse to remove the gravel from your tank? As I said earlier, water quality is the most important aspect of raising large, healthy fish, and in comparison slight variances in diet often will not matter in the long run.