dogsrule,
That is REALLY small. Let me tell you a quick story: About 35 years ago, I got access to one of the first tiny clown triggers I had ever seen in the US. I fed it frozen adult brine shrimp one time - it ate like a pig. From that point, it simply excreted the undigested brine and consumed it again, for a few days, and then it died. The problem was that these tiny clown triggers could only be collected using sodium cyanide, and the fish's gut was so compromised that it couldn't digest the exoskeleton of the brine shrimp.
Luckily, it is unlikely that your humu was collected with cyanide. However, brine is still hard for small fish to digest so I would suggest other food items. Brine shrimp is also not a good food for long term use because it is lacking in certain fatty acids that fish need. You could try chopped frozen mysis shrimp, but they have shells as well (but are a bit easier to digest). Check with your dealer to see if they carry any of those premium frozen gel diets - you can cut those up to any size you need. I've also been impressed with New Life Spectrum sinking pellets for marine fish.
Jay Hemdal
