The Astros have promoted 5-foot-7 second baseman Jose Altuve and shortstop Jonathan Villar to Double-A Corpus Christi from Class A Lancaster in a move that will move Jimmy Paredes to third base. Astros director of player development Fred Nelson said it’s time for Altuve and Villar to get tested at a higher level.

“Altuve is a guy that has come onto our radar screen,” Nelson said. “He’s continues to play well. He’s not a very big kid in stature, but he plays like a man and knows how to play the game and he’s a guy that’s a baseball player. There comes a point in time when we have to take notice of that and we certainly have.”

Altuve, 21, leads the California League with a ridiculous batting average of .408 (87-for-213) with five homers, 34 RBIs and a leading-leading seven triples. Villar, acquired by the Astros from the Phillies in the Roy Oswalt trade, was hitting .259 with four homers, 26 RBIs and 20 steals at Lancaster.

“We just felt the time was right to give [Altuve] an opportunity, and it gives the organization a chance to see how good of a player he is and how he adjusts to a higher level,” Nelson said. “He’s had a wonderful year offensively for us.”

Nelson said the Astros want Villar to focus on making better contact while at Corpus Christi.

“At times he overswings and comes off the ball,” he said. “He’s got enough power to drive balls in alleys and will hit some home runs. He needs to be more of a line drive, gap-to-gap guy, with better contact.  His defensive skills are really quality.”

Paredes, acquired by the Astros from the Yankees in last year’s trade for Lance Berkman, is hitting .265 in 162 at-bats as Corpus Christi’s second baseman. He’s made a team-high nine errors.

“We don’t have any problems getting him at-bats at third,” said Nelson, who added that Paredes could get time at second in the instructional league or the Arizona Fall League. “As much as anything, it’s a way to get two other guys on the club and get them all at-bats. He’s the most logical guy to move over and take some reps at third.”

In other roster moves, third baseman David Flores is being sent down to Lancaster after hitting .212 at Corpus Christi. Left fielder Daniel Adamson is going on the disabled list at Lexington and the Astros are bringing outfielder Jordan Scott, who’s in extended Spring Training, to join the Lexington club. Henry Rodriguez, a utility infielder, is joining Lancaster from extended Spring Training.Nelson sang the praises of 2009 first-round Draft pick Jiovanni Mier, a shortstop who’s hitting .259 with five homers and 27 RBIs in 170 at-bats at Lexington. He’s committed eight errors in 45 games.

“He’s really matured and is playing really, really sound defense,” Nelson said. “We really like what we’ve seen there. I think he’s right on track. I think he’s matured as a player, he’s not as hard on himself and understands the season’s long and there’s going to be ups and downs and you have to be able to deal with both. I’m really impressed with how he’s conducted himself and how sound he’s been on defense.”