I was in my LFS the other day taking a close look at some fresh royal grammas they had for sale and I was just blown away by the coloration compared to mine that's been in my tank about 9 months. I realize colors can fade on many fish over time, but I'm shocked how stark the difference is in a relatively short time frame. It’s not just the vibrancy of the two separate colors, but specifically the middle area where the color transitions. It really sparkled on the fresh ones. After doing some reading, I understand this is a well-known phenomenon. Live aquaria writes that:
“One of the biggest drawbacks in keeping this resplendent fish is that its color often fades in captivity. The gramma may still be attractive even after this chromatic change, but the captive coloration is often only a shadow of its former brilliance. This is probably the result of dietary deficiency, but bright lighting and low dissolved oxygen levels are also a possible cause. The grammas will eat a variety of flake, frozen and fresh foods; the more varied the diet the less rapid or less likely color loss will occur.”
This is my favorite fish in my tank and one of the reasons I got a tank, so I’m keenly interested in understanding if this change is inevitable and/or reversable. These are one of the most common and popular fish so I’m kind of surprised the exact nutrient deficiency isn’t understood yet (assuming nutrients are the primary culprit). In the lack of actual studies or concrete evidence, I was hoping to just get more firsthand accounts from other royal gramma owners. My questions are:
“One of the biggest drawbacks in keeping this resplendent fish is that its color often fades in captivity. The gramma may still be attractive even after this chromatic change, but the captive coloration is often only a shadow of its former brilliance. This is probably the result of dietary deficiency, but bright lighting and low dissolved oxygen levels are also a possible cause. The grammas will eat a variety of flake, frozen and fresh foods; the more varied the diet the less rapid or less likely color loss will occur.”
This is my favorite fish in my tank and one of the reasons I got a tank, so I’m keenly interested in understanding if this change is inevitable and/or reversable. These are one of the most common and popular fish so I’m kind of surprised the exact nutrient deficiency isn’t understood yet (assuming nutrients are the primary culprit). In the lack of actual studies or concrete evidence, I was hoping to just get more firsthand accounts from other royal gramma owners. My questions are:
- Does anyone own an adult royal gramma that you feel looks the same as a newly caught one? If so what are you feeding?
- Does anyone have experience making a dietary change (or other change) that you feel brought back lost coloration in a royal gramma?