Few questions for the bowheads out there:
What do you feed for best health and coloration?
M to F ratio? (should I decide to attempt breeding)
How many could I keep in a 55 with proper care?
Hey can't believe I missed this thread.
I am always interested in following another Rainbow tank!
As noted above, I keep an all male tank. I have kept both types, and settled on males as there is only so much room in the tank, and I am going for the maximum color display.
You will read over and over on the web that males won't show good color without females, but I have to say that has never been my experience. Well cared for Bows in a comfortable environment will show brilliant colors, and will also flash and spar daily.
Rainbows are generally a thin fish without a lot of mass. I've always kept them at what most would consider pretty well stocked. Right now in my 120G I have 26 Bows and some Roseline's and Loaches, it that helps give you some idea.
In general Rainbows appreciate a well maintained tank, with good flow and heavy aeration. They do seem to show best colors in a heavily planted tank. Just seems to make them more comfortable and display more nicely. Large regular water changes, gravel vacs, good filter maintenance, etc.....all the things plants like too.
As to feeding, Rainbows will eat about anything. And the thing is, they ALWAYS seem hungry. I only feed mine once a day, and much less than most would think. Resisting over feeding is better for both the Bows, plants, and the tank in general.
Here is what is on the menu for mine. Hope that helps and please feel free to reach out if there is anything I can help you with. And by the way, nice looking Beosemani you have there. Looks like very good breeding.