Hi! So back in March I got a black Orchid betta that looked similar to this:https://encrypted-tbn1.gstatic.com/...7zNPIlvIXbBXDGgrB_oWcQuNyNe4v4XDEy9CSlsC2yHKA
I noticed about a month after I got him that his head began to change colors, getting more white. Here's what he looks like now:
Any ideas as to what happened to him, or whether or not it can be reversed? Has anyone else ever seen/experienced this? And info. would be appreciated!
Tank info.: nitrates are always under 10ppm, no ammonia, no nitrite, ph 7, and he lives in a two gallon filtered bowl with multiple live plants and a pair of endlers.

I noticed about a month after I got him that his head began to change colors, getting more white. Here's what he looks like now:

Any ideas as to what happened to him, or whether or not it can be reversed? Has anyone else ever seen/experienced this? And info. would be appreciated!
Tank info.: nitrates are always under 10ppm, no ammonia, no nitrite, ph 7, and he lives in a two gallon filtered bowl with multiple live plants and a pair of endlers.
