This is very helpful thank you!In addition to the excellent food recommendations by @vetteguy53081, I would add a couple of items to the list, which will also help rapidly fatten up your Hippo Tang and promote general health.
Fresh Clams
I find fresh clams are invaluable in both getting fish to eat and fattening them up. Fresh clams are a good source of two key nutrients that are important (especially for Hippo Tangs).
Omega-3 Fatty Acids
If you remember your high school biology class, Omega-3 Fatty Acids include the infamous DHA, which is critical in brain and organ health. This will ensure physical robustness and feed fat stores.
Vitamin B12
Tangs are highly susceptible to HLLE. It has been proven through multiple research studies that there is a strong connection between HLLE and the use of particulate-abundant ("dusty") activated carbon (which is pretty much all carbon). Jay Hemdal has an excellent study he conducted with a partner that I feel is a bedrock study that all should commit to memory. One less studied influence of HLLE is a vitamin B12 deficiency. In the 80's and 90's, with the help of a vet, I treated HLLE with B12 injections. We observed a dramatic slowing of the disease amongst fish that were treated with B12 shots. My personal experience was not conducted as a true research study; that experience left me with the strong opinion that feeding food rich in vitamin B12 helps prevent HLLE. Clams have a high level of vitamin B12
Chopped Squid
Chopped squid is another food that I find my tangs love. Please note, not all fish go crazy for squid, but those that do benefit from two key items in its nutritional profile:
If you choose the frozen route for your squid, make sure it is labeled "raw" and has no additives (salt or preservatives). I find high-end supermarkets, specialty meat vendors, and Asian markets carry pure raw frozen squid.
- High Levels of Protein - Squid is incredibly protein-dense. When my wife was on Whole 30, squid was something that she used as a great supercharged source of protein.
- Selenium - Which is a mineral that supports growth and a healthy immune system.
I personally feed these items as a supplement to a diet built around various algae (nori, spirulina, other macros). FYI, I get all my algae products from Amazon; that way I avoid the "Reef Tax". I get 10x to 50x the product for the same price.








