'Raising Sextuplets' couple separates

News comes on the heels of  Bryan Masche’s arrest

"Raising Sextuplets" couple Bryan and Jennifer Masche have filed for legal separation, according to court documents obtained by RadarOnline.com.

Jennifer filed the petition at the Yavapi County Superior Court in Arizona on September 17 -- about three weeks after Bryan was charged of resisting arrest, disorderly conduct and threatening domestic violence during a family gathering.

The couple, who chronicle raising their 3-year-old sextuplets on their WE show, have admitted to marital issues. "We have totally brutal fights," Jenny once told People magazine.

They wed in January 2004. Bryan proposed on television during a Arizona Diamondbacks baseball game in 2003.