SUMMARY ORDER

Petitioner Jian Min Chen, a native and citizen of China, seeks review of an April 23, 2013 order of the BIA, affirming the April 22, 2011 decision of an Immigration Judge (“IJ”), which denied asylum, withholding of removal, and relief under the Convention Against Torture (“CAT”). In re Jian Min Chen, No. A087 588 353 (B.I.A. Apr. 23, 2013), aff'g No. A087 588 353 (Immig.Ct. New York City Apr. 22, 2011). We assume the parties’ familiarity with the underlying facts and procedural history in this case.

Under the circumstances of this case, we review the IJ’s decision as modified by the BIA. See Xue Hong Yang v. U.S. Dep’t of Justice, 426 F.3d 520, 522 (2d Cir. 2005). The applicable standards of review are well established. See 8 U.S.C. § 1252(b)(4)(B); Yanqin Weng v. Holder, 562 F.3d 510, 513 (2d Cir. 2009). Chen does not challenge the agency’s denial of withholding of removal or CAT relief and has therefore waived review of those determinations. See Yueqing Zhang v. Gonzales, 426 F.3d 540, 541 n. 1 (2d Cir. 2005).

Contrary to Chen’s assertions, the agency did not err in finding that he failed to establish past persecution. The BIA has defined persecution as a “threat to the life or freedom of, or the infliction of suffering or harm upon, those who differ in a way regarded as offensive.” Matter of Acosta, 19 I. & N. Dec. 211, 222 (B.I.A. 1985), overruled, in paH, on other grounds by Matter of Mogharrabi, 19 I. & N. Dec. 439 (B.I.A. 1987); accord Ivanishvili v. U.S. Dep’t of Justice, 433 F.3d 332, 340-41 (2d Cir. 2006). A past persecution finding may be based on harm other than threats to life or freedom, including non-life-threatening violence and physical abuse, Beskovic v. Gonzales, 467 F.3d 223, 226 n. 3 (2d Cir. 2006), but the harm must be sufficiently severe to rise above “mere harassment,” Ivanishvili, 433 F.3d at 341. The difference between harassment and persecution is “necessarily one of degree that must be decided on a case-by-case basis.” Id. Here, the agency reasonably determined that Chen’s inability to attend middle school and the repeated harassment he endured did not rise to the level of persecution. Chen was not physically harmed, threatened with violence, prevented from attending his underground church, or precluded from earning a living. While he argues that the harassment he endured would prevent a person from practicing their religion in the desired manner, persecution cannot be established on this basis. See generally Ivanishvili, 433 F.3d at 341.

The agency also did not err in finding that Chen failed to demonstrate a well-founded fear of future persecution. See Jian Xing Huang v. INS, 421 F.3d 125, 129 (2d Cir. 2005) (observing that, absent “solid support in the record,” a fear of persecution is “speculative at best” (citation omitted)). Chen does not contest the agency’s findings that his fear of persecution was undermined by the fact that his mother has continued attending the family’s underground church in China without harm, that the country conditions evidence reflected a fair amount of underground church activity in his home province of Fujian, and that he did not assert that he would suffer any worse treatment than he had received in the past. He has therefore failed to demonstrate any error in the agency’s well-founded fear determination. See Jian Xing Huang, 421 F.3d at 129; see also Melgar de Torres v. Reno, 191 F.3d 307, 313 (2d Cir. 1999) (finding applicant’s claimed fear of persecution diminished where similarly-situated family mem *799 bers remain in applicant’s native country unharmed).

Last, we decline to consider Chen’s challenge to the IJ’s adverse credibility determination, because the BIA did not rely on that determination. See INS v. Bagamasbad, 429 U.S. 24, 25, 97 S.Ct. 200, 50 L.Ed.2d 190 (1976) (“As a general rule courts and agencies are not required to make findings on issues the decision of which is unnecessary to the results they reach.” (citations omitted)).

For the foregoing reasons, the petition for review is DENIED. As we have completed our review, the pending motion for a stay of removal in this petition is DISMISSED as moot.